English verb conjugation COULD TACK

Regular verb: tack - tacked - tacked

Affirmation

Simple form

I could tack
you could tack
he could tack
we could tack
you could tack
they could tack

V-ing form

I could be tacking
you could be tacking
he could be tacking
we could be tacking
you could be tacking
they could be tacking

Perfect

I could have tacked
you could have tacked
he could have tacked
we could have tacked
you could have tacked
they could have tacked

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I tack?
could you tack?
could he tack?
could we tack?
could you tack?
could they tack?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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