Conjugation of the verb "underdevelop"

Conjugation of the verb underdevelop, regular

underdevelop not underdevelopunderdevelop?
All forms Indicative Conditional Participles Infinitives

Indicative

Present Indefinite

I underdevelop
you underdevelop
he/she/it underdevelops
we underdevelop
you underdevelop
they underdevelop

Present Continuous

I am underdeveloping
you are underdeveloping
he/she/it is underdeveloping
we are underdeveloping
you are underdeveloping
they are underdeveloping

Present Perfect

I have underdeveloped
you have underdeveloped
he/she/it has underdeveloped
we have underdeveloped
you have underdeveloped
they have underdeveloped

Present Perfect Continuous

I have been underdeveloping
you have been underdeveloping
he/she/it has been underdeveloping
we have been underdeveloping
you have been underdeveloping
they have been underdeveloping

Past Indefinite

I underdeveloped
you underdeveloped
he/she/it underdeveloped
we underdeveloped
you underdeveloped
they underdeveloped

Past Continuous

I was underdeveloping
you were underdeveloping
he/she/it was underdeveloping
we were underdeveloping
you were underdeveloping
they were underdeveloping

Past Perfect

I had underdeveloped
you had underdeveloped
he/she/it had underdeveloped
we had underdeveloped
you had underdeveloped
they had underdeveloped

Past Perfect Continuous

I had been underdeveloping
you had been underdeveloping
he/she/it had been underdeveloping
we had been underdeveloping
you had been underdeveloping
they had been underdeveloping

Future Indefinite

I will underdevelop
you will underdevelop
he/she/it will underdevelop
we will underdevelop
you will underdevelop
they will underdevelop

Future Continuous

I will be underdeveloping
you will be underdeveloping
he/she/it will be underdeveloping
we will be underdeveloping
you will be underdeveloping
they will be underdeveloping

Future Perfect

I will have underdeveloped
you will have underdeveloped
he/she/it will have underdeveloped
we will have underdeveloped
you will have underdeveloped
they will have underdeveloped

Future Perfect Continuous

I will have been underdeveloping
you will have been underdeveloping
he/she/it will have been underdeveloping
we will have been underdeveloping
you will have been underdeveloping
they will have been underdeveloping

Indicative

Present Indefinite

I don't underdevelop
you don't underdevelop
he/she/it doesn't underdevelop
we don't underdevelop
you don't underdevelop
they don't underdevelop

Present Continuous

I am not underdeveloping
you aren't underdeveloping
he/she/it isn't underdeveloping
we aren't underdeveloping
you aren't underdeveloping
they aren't underdeveloping

Present Perfect

I haven't underdeveloped
you haven't underdeveloped
he/she/it hasn't underdeveloped
we haven't underdeveloped
you haven't underdeveloped
they haven't underdeveloped

Present Perfect Continuous

I haven't been underdeveloping
you haven't been underdeveloping
he/she/it hasn't been underdeveloping
we haven't been underdeveloping
you haven't been underdeveloping
they haven't been underdeveloping

Past Indefinite

I didn't underdevelop
you didn't underdevelop
he/she/it didn't underdevelop
we didn't underdevelop
you didn't underdevelop
they didn't underdevelop

Past Continuous

I wasn't underdeveloping
you weren't underdeveloping
he/she/it wasn't underdeveloping
we weren't underdeveloping
you weren't underdeveloping
they weren't underdeveloping

Past Perfect

I hadn't underdeveloped
you hadn't underdeveloped
he/she/it hadn't underdeveloped
we hadn't underdeveloped
you hadn't underdeveloped
they hadn't underdeveloped

Past Perfect Continuous

I hadn't been underdeveloping
you hadn't been underdeveloping
he/she/it hadn't been underdeveloping
we hadn't been underdeveloping
you hadn't been underdeveloping
they hadn't been underdeveloping

Future Indefinite

I shan't / won't underdevelop
you won't underdevelop
he/she/it won't underdevelop
we shan't / won't underdevelop
you won't underdevelop
they won't underdevelop

Future Continuous

I shan't / won't be underdeveloping
you won't be underdeveloping
he/she/it won't be underdeveloping
we shan't / won't be underdeveloping
you won't be underdeveloping
they won't be underdeveloping

Future Perfect

I shan't / won't have underdeveloped
you won't have underdeveloped
he/she/it won't have underdeveloped
we shan't / won't have underdeveloped
you won't have underdeveloped
they won't have underdeveloped

Future Perfect Continuous

I shan't / won't have been underdeveloping
you won't have been underdeveloping
he/she/it won't have been underdeveloping
we shan't / won't have been underdeveloping
you won't have been underdeveloping
they won't have been underdeveloping

Indicative

Present Indefinite

do I underdevelop?
do you underdevelop?
does he/she/it underdevelop?
do we underdevelop?
do you underdevelop?
do they underdevelop?

Present Continuous

am I underdeveloping?
are you underdeveloping?
is he/she/it underdeveloping?
are we underdeveloping?
are you underdeveloping?
are they underdeveloping?

Present Perfect

have I underdeveloped?
have you underdeveloped?
has he/she/it underdeveloped?
have we underdeveloped?
have you underdeveloped?
have they underdeveloped?

Present Perfect Continuous

have I been underdeveloping?
have you been underdeveloping?
has he/she/it been underdeveloping?
have we been underdeveloping?
have you been underdeveloping?
have they been underdeveloping?

Past Indefinite

did I underdevelop?
did you underdevelop?
did he/she/it underdevelop?
did we underdevelop?
did you underdevelop?
did they underdevelop?

Past Continuous

was I underdeveloping?
were you underdeveloping?
was he/she/it underdeveloping?
were we underdeveloping?
were you underdeveloping?
were they underdeveloping?

Past Perfect

had I underdeveloped?
had you underdeveloped?
had he/she/it underdeveloped?
had we underdeveloped?
had you underdeveloped?
had they underdeveloped?

Past Perfect Continuous

had I been underdeveloping?
had you been underdeveloping?
had he/she/it been underdeveloping?
had we been underdeveloping?
had you been underdeveloping?
had they been underdeveloping?

Future Indefinite

will I underdevelop?
will you underdevelop?
will he/she/it underdevelop?
will we underdevelop?
will you underdevelop?
will they underdevelop?

Future Continuous

will I be underdeveloping?
will you be underdeveloping?
will he/she/it be underdeveloping?
will we be underdeveloping?
will you be underdeveloping?
will they be underdeveloping?

Future Perfect

will I have underdeveloped?
will you have underdeveloped?
will he/she/it have underdeveloped?
will we have underdeveloped?
will you have underdeveloped?
will they have underdeveloped?

Future Perfect Continuous

will I have been underdeveloping?
will you have been underdeveloping?
will he/she/it have been underdeveloping?
will we have been underdeveloping?
will you have been underdeveloping?
will they have been underdeveloping?

Conditional

Conditional Present

I would underdevelop
you would underdevelop
he/she/it would underdevelop
we would underdevelop
you would underdevelop
they would underdevelop

Conditional Present Continuous

I would be underdeveloping
you would be underdeveloping
he/she/it would be underdeveloping
we would be underdeveloping
you would be underdeveloping
they would be underdeveloping

Conditional Perfect

I would have underdeveloped
you would have underdeveloped
he/she/it would have underdeveloped
we would have underdeveloped
you would have underdeveloped
they would have underdeveloped

Conditional Perfect Continuous

I would have been underdeveloping
you would have been underdeveloping
he/she/it would have been underdeveloping
we would have been underdeveloping
you would have been underdeveloping
they would have been underdeveloping

Conditional

Conditional Present

I wouldn't underdevelop
you wouldn't underdevelop
he/she/it wouldn't underdevelop
we wouldn't underdevelop
you wouldn't underdevelop
they wouldn't underdevelop

Conditional Present Continuous

I wouldn't be underdeveloping
you wouldn't be underdeveloping
he/she/it wouldn't be underdeveloping
we wouldn't be underdeveloping
you wouldn't be underdeveloping
they wouldn't be underdeveloping

Conditional Perfect

I wouldn't have underdeveloped
you wouldn't have underdeveloped
he/she/it wouldn't have underdeveloped
we wouldn't have underdeveloped
you wouldn't have underdeveloped
they wouldn't have underdeveloped

Conditional Perfect Continuous

I wouldn't have been underdeveloping
you wouldn't have been underdeveloping
he/she/it wouldn't have been underdeveloping
we wouldn't have been underdeveloping
you wouldn't have been underdeveloping
they wouldn't have been underdeveloping

Conditional

Conditional Present

would I underdevelop?
would you underdevelop?
would he/she/it underdevelop?
would we underdevelop?
would you underdevelop?
would they underdevelop?

Conditional Present Continuous

would I be underdeveloping?
would you be underdeveloping?
would he/she/it be underdeveloping?
would we be underdeveloping?
would you be underdeveloping?
would they be underdeveloping?

Conditional Perfect

would I have underdeveloped?
would you have underdeveloped?
would he/she/it have underdeveloped?
would we have underdeveloped?
would you have underdeveloped?
would they have underdeveloped?

Conditional Perfect Continuous

would I have been underdeveloping?
would you have been underdeveloping?
would he/she/it have been underdeveloping?
would we have been underdeveloping?
would you have been underdeveloping?
would they have been underdeveloping?

Participles

Present

underdeveloping

Past

underdeveloped

Infinitives

Infinitives

to underdevelop
to have underdeveloped
to be underdeveloping
to have been underdeveloping
Did you find any mistake or inaccuracy? Please write to us.

English Verb Conjugation Online

PROMT.One helps you quickly check English verb forms online. Enter a verb and instantly get a table with the base form, the 3rd person singular form, the Past Simple form, the Past Participle form, and the -ing form, as well as conjugation across all 12 tenses with examples.

What the Table Shows

The service displays English verb forms by person, number, and tense, including regular, irregular, and phrasal verbs. This is useful for studying, translation, writing, and quick grammar checks.

How to Use It

  • Enter an English verb in the search box.
  • Click Search.
  • Get a table of forms, tenses, and usage examples.

Frequently Asked Questions

Which forms does the service show?
The base form, the 3rd person singular form, the Past Simple form, the Past Participle form, and the -ing form.

Does the service show irregular verbs?
Yes. PROMT.One shows irregular English verb forms and their usage across tenses.

Can I check a phrasal verb?
Yes. The service supports phrasal verbs and shows their forms together with examples.

Try it now: enter an English verb and get a complete table of forms and tenses in PROMT.One.

PROMT.One is a fast and helpful tool for any language learner. Check the conjugation of verbs and see the table of tenses for English, German, Russian, French, Italian, Portuguese and Spanish.