English verb conjugation COULD CONVULSE

Regular verb: convulse - convulsed - convulsed

Affirmation

Simple form

I could convulse
you could convulse
he could convulse
we could convulse
you could convulse
they could convulse

V-ing form

I could be convulsing
you could be convulsing
he could be convulsing
we could be convulsing
you could be convulsing
they could be convulsing

Perfect

I could have convulsed
you could have convulsed
he could have convulsed
we could have convulsed
you could have convulsed
they could have convulsed

V-ing perfect

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

Negation

Simple form

I couldn't convulse
you couldn't convulse
he couldn't convulse
we couldn't convulse
you couldn't convulse
they couldn't convulse

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I convulse?
could you convulse?
could he convulse?
could we convulse?
could you convulse?
could they convulse?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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