Conjugation of the verb "certify"

Conjugation of the verb certify[ˈsə:tɪfaɪ], regular     

certify not certifycertify?
All forms Indicative Conditional Participles Infinitives

Indicative

Present Indefinite

I certify
you certify
he/she/it certifies
we certify
you certify
they certify

Present Continuous

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

Present Perfect

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

Present Perfect Continuous

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

Past Indefinite

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

Past Continuous

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

Past Perfect

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

Past Perfect Continuous

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

Future Indefinite

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

Future Continuous

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

Future Perfect

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

Future Perfect Continuous

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

Indicative

Present Indefinite

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

Present Continuous

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

Present Perfect

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

Present Perfect Continuous

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

Past Indefinite

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

Past Continuous

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

Past Perfect

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

Past Perfect Continuous

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

Future Indefinite

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

Future Continuous

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

Future Perfect

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

Future Perfect Continuous

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

Indicative

Present Indefinite

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

Present Continuous

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

Present Perfect

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

Present Perfect Continuous

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

Past Indefinite

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

Past Continuous

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

Past Perfect

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

Past Perfect Continuous

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

Future Indefinite

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

Future Continuous

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

Future Perfect

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

Future Perfect Continuous

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

Conditional

Conditional Present

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

Conditional Present Continuous

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

Conditional Perfect

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

Conditional Perfect Continuous

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

Conditional

Conditional Present

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

Conditional Present Continuous

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

Conditional Perfect

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

Conditional Perfect Continuous

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

Conditional

Conditional Present

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

Conditional Present Continuous

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

Conditional Perfect

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

Conditional Perfect Continuous

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

Participles

Present

certifying

Past

certified

Infinitives

Infinitives

to certify
to have certified
to be certifying
to have been certifying
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.