English verb conjugation SHOULD ASCERTAIN

Regular verb: ascertain - ascertained - ascertained

Affirmation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Negation

Simple form

I should not ascertain
you should not ascertain
he should not ascertain
we should not ascertain
you should not ascertain
they should not ascertain

V-ing form

I should not be ascertaining
you should not be ascertaining
he should not be ascertaining
we should not be ascertaining
you should not be ascertaining
they should not be ascertaining

Perfect

I should not have ascertained
you should not have ascertained
he should not have ascertained
we should not have ascertained
you should not have ascertained
they should not have ascertained

V-ing perfect

I should not have been ascertaining
you should not have been ascertaining
he should not have been ascertaining
we should not have been ascertaining
you should not have been ascertaining
they should not 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

should I not ascertain?
should you not ascertain?
should he not ascertain?
should we not ascertain?
should you not ascertain?
should they not ascertain?

V-ing form

should I not be ascertaining?
should you not be ascertaining?
should he not be ascertaining?
should we not be ascertaining?
should you not be ascertaining?
should they not be ascertaining?

Perfect

should I not have ascertained?
should you not have ascertained?
should he not have ascertained?
should we not have ascertained?
should you not have ascertained?
should they not have ascertained?

V-ing perfect

should I not have been ascertaining?
should you not have been ascertaining?
should he not have been ascertaining?
should we not have been ascertaining?
should you not have been ascertaining?
should they not have been ascertaining?

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