Conjugation of the verb "ascertain"

Conjugation of the verb ascertain[ˌæsəˈteɪn], regular     

ascertain not ascertainascertain?
All forms Indicative Conditional Participles Infinitives

Indicative

Present Indefinite

I ascertain
you ascertain
he/she/it ascertains
we ascertain
you ascertain
they ascertain

Present Continuous

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

Present Perfect

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

Present Perfect Continuous

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

Past Indefinite

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

Past Continuous

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

Past Perfect

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

Past Perfect Continuous

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

Future Indefinite

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

Future Continuous

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

Future Perfect

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

Future Perfect Continuous

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

Indicative

Present Indefinite

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

Present Continuous

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

Present Perfect

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

Present Perfect Continuous

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

Past Indefinite

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

Past Continuous

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

Past Perfect

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

Past Perfect Continuous

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

Future Indefinite

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

Future Continuous

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

Future Perfect

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

Future Perfect Continuous

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

Indicative

Present Indefinite

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

Present Continuous

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

Present Perfect

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

Present Perfect Continuous

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

Past Indefinite

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

Past Continuous

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

Past Perfect

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

Past Perfect Continuous

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

Future Indefinite

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

Future Continuous

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

Future Perfect

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

Future Perfect Continuous

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

Conditional

Conditional Present

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

Conditional Present Continuous

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

Conditional Perfect

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

Conditional Perfect Continuous

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

Conditional

Conditional Present

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

Conditional Present Continuous

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

Conditional Perfect

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

Conditional Perfect Continuous

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

Conditional

Conditional Present

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

Conditional Present Continuous

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

Conditional Perfect

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

Conditional Perfect Continuous

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

Participles

Present

ascertaining

Past

ascertained

Infinitives

Infinitives

to ascertain
to have ascertained
to be ascertaining
to have been ascertaining
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