To Ascertain

Infinitive: to ascertain
Gerund: ascertaining
Past participle: ascertained
Simple past: ascertained


Irregular forms
Auxilliary verb
Spelling change

Indicative

Present
I ascertain I ascertain
you ascertain you ascertain
he/she/it ascertains he/she/it ascertains
we ascertain we ascertain
they ascertain they ascertain
you ascertain you ascertain
I do not ascertain I don't ascertain
you do not ascertain you don't ascertain
he/she/it does not ascertain he/she/it doesn't ascertain
we do not ascertain we don't ascertain
they do not ascertain they don't ascertain
you do not ascertain you don't ascertain
Preterite
I ascertained I ascertained
you ascertained you ascertained
he/she/it ascertained he/she/it ascertained
we ascertained we ascertained
they ascertained they ascertained
you ascertained you ascertained
I did not ascertain I didn't ascertain
you did not ascertain you didn't ascertain
he/she/it did not ascertain he/she/it didn't ascertain
we did not ascertain we didn't ascertain
they did not ascertain they didn't ascertain
you did not ascertain you didn't ascertain
Future
I will ascertain I'll ascertain
you will ascertain you'll ascertain
he/she/it will ascertain he/she/it'll ascertain
we will ascertain we'll ascertain
they will ascertain they'll ascertain
you will ascertain you'll ascertain
I will not ascertain I won't ascertain
you will not ascertain you won't ascertain
he/she/it will not ascertain he/she/it won't ascertain
we will not ascertain we won't ascertain
they will not ascertain they won't ascertain
you will not ascertain you won't ascertain

Perfect

Present
I have ascertained I've ascertained
you have ascertained you've ascertained
he/she/it has ascertained he/she/it's ascertained
we have ascertained we've ascertained
they have ascertained they've ascertained
you have ascertained you've ascertained
I have not ascertained I haven't ascertained
you have not ascertained you haven't ascertained
he/she/it has not ascertained he/she/it hasn't ascertained
we have not ascertained we haven't ascertained
they have not ascertained they haven't ascertained
you have not ascertained you haven't ascertained
Past
I had ascertained I'd ascertained
you had ascertained you'd ascertained
he/she/it had ascertained he/she/it'd ascertained
we had ascertained we'd ascertained
they had ascertained they'd ascertained
you had ascertained you'd ascertained
I had not ascertained I hadn't ascertained
you had not ascertained you hadn't ascertained
he/she/it had not ascertained he/she/it hadn't ascertained
we had not ascertained we hadn't ascertained
they had not ascertained they hadn't ascertained
you had not ascertained you hadn't ascertained
Future
I will have ascertained I'll have ascertained
you will have ascertained you'll have ascertained
he/she/it will have ascertained he/she/it'll have ascertained
we will have ascertained we'll have ascertained
they will have ascertained they'll have ascertained
you will have ascertained you'll have ascertained
I will not have ascertained I won't have ascertained
you will not have ascertained you won't have ascertained
he/she/it will not have ascertained he/she/it won't have ascertained
we will not have ascertained we won't have ascertained
they will not have ascertained they won't have ascertained
you will not have ascertained you won't have ascertained

Continuous

Present
I am ascertaining I'm ascertaining
you are ascertaining you're ascertaining
he/she/it is ascertaining he/she/it's ascertaining
we are ascertaining we're ascertaining
they are ascertaining they're ascertaining
you are ascertaining you're ascertaining
I am not ascertaining I'm not ascertaining
you are not ascertaining you aren't ascertaining
he/she/it is not ascertaining he/she/it isn't ascertaining
we are not ascertaining we aren't ascertaining
they are not ascertaining they aren't ascertaining
you are not ascertaining you aren't ascertaining
Past
I was ascertaining I was ascertaining
you were ascertaining you were ascertaining
he/she/it was ascertaining he/she/it was ascertaining
we were ascertaining we were ascertaining
they were ascertaining they were ascertaining
you were ascertaining you were ascertaining
I was not ascertaining I wasn't ascertaining
you were not ascertaining you weren't ascertaining
he/she/it was not ascertaining he/she/it wasn't ascertaining
we were not ascertaining we weren't ascertaining
they were not ascertaining they weren't ascertaining
you were not ascertaining you weren't ascertaining
Future
I will be ascertaining I'll be ascertaining
you will be ascertaining you'll be ascertaining
he/she/it will be ascertaining he/she/it'll be ascertaining
we will be ascertaining we'll be ascertaining
they will be ascertaining they'll be ascertaining
you will be ascertaining you'll be ascertaining
I will not be ascertaining I won't be ascertaining
you will not be ascertaining you won't be ascertaining
he/she/it will not be ascertaining he/she/it won't be ascertaining
we will not be ascertaining we won't be ascertaining
they will not be ascertaining they won't be ascertaining
you will not be ascertaining you won't be ascertaining

Continuous Perfect

Present
I have been ascertaining I've been ascertaining
you have been ascertaining you've been ascertaining
he/she/it has been ascertaining he/she/it's been ascertaining
we have been ascertaining we've been ascertaining
they have been ascertaining they've been ascertaining
you have been ascertaining you've been ascertaining
I have not been ascertaining I haven't been ascertaining
you have not been ascertaining you haven't been ascertaining
he/she/it has not been ascertaining he/she/it hasn't been ascertaining
we have not been ascertaining we haven't been ascertaining
they have not been ascertaining they haven't been ascertaining
you have not been ascertaining you haven't been ascertaining
Past
I had been ascertaining I'd been ascertaining
you had been ascertaining you'd been ascertaining
he/she/it had been ascertaining he/she/it'd been ascertaining
we had been ascertaining we'd been ascertaining
they had been ascertaining they'd been ascertaining
you had been ascertaining you'd been ascertaining
I had not been ascertaining I hadn't been ascertaining
you had not been ascertaining you hadn't been ascertaining
he/she/it had not been ascertaining he/she/it hadn't been ascertaining
we had not been ascertaining we hadn't been ascertaining
they had not been ascertaining they hadn't been ascertaining
you had not been ascertaining you hadn't been ascertaining
Future
I will have been ascertaining I'll have been ascertaining
you will have been ascertaining you'll have been ascertaining
he/she/it will have been ascertaining he/she/it'll have been ascertaining
we will have been ascertaining we'll have been ascertaining
they will have been ascertaining they'll have been ascertaining
you will have been ascertaining you'll have been ascertaining
I will not have been ascertaining I won't have been ascertaining
you will not have been ascertaining you won't have been ascertaining
he/she/it will not have been ascertaining he/she/it won't have been ascertaining
we will not have been ascertaining we won't have been ascertaining
they will not have been ascertaining they won't have been ascertaining
you will not have been ascertaining you won't have been ascertaining

Conditional

Present
I would ascertain I would ascertain
you would ascertain you would ascertain
he/she/it would ascertain he/she/it would ascertain
we would ascertain we would ascertain
they would ascertain they would ascertain
you would ascertain you would ascertain
I would not ascertain I wouldn't ascertain
you would not ascertain you wouldn't ascertain
he/she/it would not ascertain he/she/it wouldn't ascertain
we would not ascertain we wouldn't ascertain
they would not ascertain they wouldn't ascertain
you would not ascertain you wouldn't ascertain
Perfect
I would have ascertained I would've ascertained
you would have ascertained you would've ascertained
he/she/it would have ascertained he/she/it would've ascertained
we would have ascertained we would've ascertained
they would have ascertained they would've ascertained
you would have ascertained you would've ascertained
I would not have ascertained I wouldn't have ascertained
you would not have ascertained you wouldn't have ascertained
he/she/it would not have ascertained he/she/it wouldn't have ascertained
we would not have ascertained we wouldn't have ascertained
they would not have ascertained they wouldn't have ascertained
you would not have ascertained you wouldn't have ascertained

Imperative

(you) ascertain (you) ascertain
(we) let's ascertain (we) let's ascertain
(you) ascertain (you) ascertain
(you) do not ascertain (you) don't ascertain
(we) let's not ascertain (we) let's not ascertain
(you) do not ascertain (you) don't ascertain