English verb conjugation COULD PERVADE

Regular verb: pervade - pervaded - pervaded

Affirmation

Simple form

I could pervade
you could pervade
he could pervade
we could pervade
you could pervade
they could pervade

V-ing form

I could be pervading
you could be pervading
he could be pervading
we could be pervading
you could be pervading
they could be pervading

Perfect

I could have pervaded
you could have pervaded
he could have pervaded
we could have pervaded
you could have pervaded
they could have pervaded

V-ing perfect

I could have been pervading
you could have been pervading
he could have been pervading
we could have been pervading
you could have been pervading
they could have been pervading

Negation

Simple form

I could not pervade
you could not pervade
he could not pervade
we could not pervade
you could not pervade
they could not pervade

V-ing form

I could not be pervading
you could not be pervading
he could not be pervading
we could not be pervading
you could not be pervading
they could not be pervading

Perfect

I could not have pervaded
you could not have pervaded
he could not have pervaded
we could not have pervaded
you could not have pervaded
they could not have pervaded

V-ing perfect

I could not have been pervading
you could not have been pervading
he could not have been pervading
we could not have been pervading
you could not have been pervading
they could not have been pervading

Interrogative form

Simple form

could I pervade?
could you pervade?
could he pervade?
could we pervade?
could you pervade?
could they pervade?

V-ing form

could I be pervading?
could you be pervading?
could he be pervading?
could we be pervading?
could you be pervading?
could they be pervading?

Perfect

could I have pervaded?
could you have pervaded?
could he have pervaded?
could we have pervaded?
could you have pervaded?
could they have pervaded?

V-ing perfect

could I have been pervading?
could you have been pervading?
could he have been pervading?
could we have been pervading?
could you have been pervading?
could they have been pervading?

Interro-negative form

Simple form

could I not pervade?
could you not pervade?
could he not pervade?
could we not pervade?
could you not pervade?
could they not pervade?

V-ing form

could I not be pervading?
could you not be pervading?
could he not be pervading?
could we not be pervading?
could you not be pervading?
could they not be pervading?

Perfect

could I not have pervaded?
could you not have pervaded?
could he not have pervaded?
could we not have pervaded?
could you not have pervaded?
could they not have pervaded?

V-ing perfect

could I not have been pervading?
could you not have been pervading?
could he not have been pervading?
could we not have been pervading?
could you not have been pervading?
could they not have been pervading?

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