English verb conjugation SHOULD ASCERTAIN

Regular verb: ascertain - ascertained - ascertained

Affirmation

Simple form

I'd ascertain
you'd ascertain
he'd ascertain
we'd ascertain
you'd ascertain
they'd ascertain

V-ing form

I'd be ascertaining
you'd be ascertaining
he'd be ascertaining
we'd be ascertaining
you'd be ascertaining
they'd be ascertaining

Perfect

I should've ascertained
you should've ascertained
he should've ascertained
we should've ascertained
you should've ascertained
they should've ascertained

V-ing perfect

I should've been ascertaining
you should've been ascertaining
he should've been ascertaining
we should've been ascertaining
you should've been ascertaining
they should've been ascertaining

Negation

Simple form

I shouldn't ascertain
you shouldn't ascertain
he shouldn't ascertain
we shouldn't ascertain
you shouldn't ascertain
they shouldn't ascertain

V-ing form

I shouldn't be ascertaining
you shouldn't be ascertaining
he shouldn't be ascertaining
we shouldn't be ascertaining
you shouldn't be ascertaining
they shouldn't be ascertaining

Perfect

I shouldn't have ascertained
you shouldn't have ascertained
he shouldn't have ascertained
we shouldn't have ascertained
you shouldn't have ascertained
they shouldn't have ascertained

V-ing perfect

I shouldn't have been ascertaining
you shouldn't have been ascertaining
he shouldn't have been ascertaining
we shouldn't have been ascertaining
you shouldn't have been ascertaining
they shouldn't have been ascertaining

Interrogative form

Simple form

should I ascertain?
should you ascertain?
should he ascertain?
should we ascertain?
should you ascertain?
should they ascertain?

V-ing form

should I be ascertaining?
should you be ascertaining?
should he be ascertaining?
should we be ascertaining?
should you be ascertaining?
should they be ascertaining?

Perfect

should I have ascertained?
should you have ascertained?
should he have ascertained?
should we have ascertained?
should you have ascertained?
should they have ascertained?

V-ing perfect

should I have been ascertaining?
should you have been ascertaining?
should he have been ascertaining?
should we have been ascertaining?
should you have been ascertaining?
should they have been ascertaining?

Interro-negative form

Simple form

shouldn't I ascertain?
shouldn't you ascertain?
shouldn't he ascertain?
shouldn't we ascertain?
shouldn't you ascertain?
shouldn't they ascertain?

V-ing form

shouldn't I be ascertaining?
shouldn't you be ascertaining?
shouldn't he be ascertaining?
shouldn't we be ascertaining?
shouldn't you be ascertaining?
shouldn't they be ascertaining?

Perfect

shouldn't I have ascertained?
shouldn't you have ascertained?
shouldn't he have ascertained?
shouldn't we have ascertained?
shouldn't you have ascertained?
shouldn't they have ascertained?

V-ing perfect

shouldn't I have been ascertaining?
shouldn't you have been ascertaining?
shouldn't he have been ascertaining?
shouldn't we have been ascertaining?
shouldn't you have been ascertaining?
shouldn't they have been ascertaining?

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