English verb conjugation COULD UNSTOP

Regular verb: unstop - unstopped - unstopped

Affirmation

Simple form

I could unstop
you could unstop
he could unstop
we could unstop
you could unstop
they could unstop

V-ing form

I could be unstopping
you could be unstopping
he could be unstopping
we could be unstopping
you could be unstopping
they could be unstopping

Perfect

I could have unstopped
you could have unstopped
he could have unstopped
we could have unstopped
you could have unstopped
they could have unstopped

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I unstop?
could you unstop?
could he unstop?
could we unstop?
could you unstop?
could they unstop?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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