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 couldn't pervade
you couldn't pervade
he couldn't pervade
we couldn't pervade
you couldn't pervade
they couldn't pervade

V-ing form

I couldn't be pervading
you couldn't be pervading
he couldn't be pervading
we couldn't be pervading
you couldn't be pervading
they couldn't be pervading

Perfect

I couldn't have pervaded
you couldn't have pervaded
he couldn't have pervaded
we couldn't have pervaded
you couldn't have pervaded
they couldn't have pervaded

V-ing perfect

I couldn't have been pervading
you couldn't have been pervading
he couldn't have been pervading
we couldn't have been pervading
you couldn't have been pervading
they couldn't 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

couldn't I pervade?
couldn't you pervade?
couldn't he pervade?
couldn't we pervade?
couldn't you pervade?
couldn't they pervade?

V-ing form

couldn't I be pervading?
couldn't you be pervading?
couldn't he be pervading?
couldn't we be pervading?
couldn't you be pervading?
couldn't they be pervading?

Perfect

couldn't I have pervaded?
couldn't you have pervaded?
couldn't he have pervaded?
couldn't we have pervaded?
couldn't you have pervaded?
couldn't they have pervaded?

V-ing perfect

couldn't I have been pervading?
couldn't you have been pervading?
couldn't he have been pervading?
couldn't we have been pervading?
couldn't you have been pervading?
couldn't they have been pervading?

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