English verb conjugation COULD MOTHBALL

Regular verb: mothball - mothballed - mothballed

Affirmation

Simple form

I could mothball
you could mothball
he could mothball
we could mothball
you could mothball
they could mothball

V-ing form

I could be mothballing
you could be mothballing
he could be mothballing
we could be mothballing
you could be mothballing
they could be mothballing

Perfect

I could have mothballed
you could have mothballed
he could have mothballed
we could have mothballed
you could have mothballed
they could have mothballed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I mothball?
could you mothball?
could he mothball?
could we mothball?
could you mothball?
could they mothball?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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