English verb conjugation COULD TUSK

Regular verb: tusk - tusked - tusked

Affirmation

Simple form

I could tusk
you could tusk
he could tusk
we could tusk
you could tusk
they could tusk

V-ing form

I could be tusking
you could be tusking
he could be tusking
we could be tusking
you could be tusking
they could be tusking

Perfect

I could have tusked
you could have tusked
he could have tusked
we could have tusked
you could have tusked
they could have tusked

V-ing perfect

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

Negation

Simple form

I could not tusk
you could not tusk
he could not tusk
we could not tusk
you could not tusk
they could not tusk

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I tusk?
could you tusk?
could he tusk?
could we tusk?
could you tusk?
could they tusk?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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