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female gender | Modal : no | may | might | can | could | shall | should | will | would | must | ought to

English verb conjugation COULD RETIGHTEN

Regular verb: retighten - retightened - retightened


Affirmation

Simple form
I could retighten
you could retighten
he could retighten
we could retighten
you could retighten
they could retighten
V-ing form
I could be retightening
you could be retightening
he could be retightening
we could be retightening
you could be retightening
they could be retightening
Perfect
I could have retightened
you could have retightened
he could have retightened
we could have retightened
you could have retightened
they could have retightened
V-ing perfect
I could have been retightening
you could have been retightening
he could have been retightening
we could have been retightening
you could have been retightening
they could have been retightening

Negation

Simple form
I couldn't retighten
you couldn't retighten
he couldn't retighten
we couldn't retighten
you couldn't retighten
they couldn't retighten
V-ing form
I couldn't be retightening
you couldn't be retightening
he couldn't be retightening
we couldn't be retightening
you couldn't be retightening
they couldn't be retightening
Perfect
I couldn't have retightened
you couldn't have retightened
he couldn't have retightened
we couldn't have retightened
you couldn't have retightened
they couldn't have retightened
V-ing perfect
I couldn't have been retightening
you couldn't have been retightening
he couldn't have been retightening
we couldn't have been retightening
you couldn't have been retightening
they couldn't have been retightening

Interrogative form

Simple form
could I retighten?
could you retighten?
could he retighten?
could we retighten?
could you retighten?
could they retighten?
V-ing form
could I be retightening?
could you be retightening?
could he be retightening?
could we be retightening?
could you be retightening?
could they be retightening?
Perfect
could I have retightened?
could you have retightened?
could he have retightened?
could we have retightened?
could you have retightened?
could they have retightened?
V-ing perfect
could I have been retightening?
could you have been retightening?
could he have been retightening?
could we have been retightening?
could you have been retightening?
could they have been retightening?

Interro-negative form

Simple form
couldn't I retighten?
couldn't you retighten?
couldn't he retighten?
couldn't we retighten?
couldn't you retighten?
couldn't they retighten?
V-ing form
couldn't I be retightening?
couldn't you be retightening?
couldn't he be retightening?
couldn't we be retightening?
couldn't you be retightening?
couldn't they be retightening?
Perfect
couldn't I have retightened?
couldn't you have retightened?
couldn't he have retightened?
couldn't we have retightened?
couldn't you have retightened?
couldn't they have retightened?
V-ing perfect
couldn't I have been retightening?
couldn't you have been retightening?
couldn't he have been retightening?
couldn't we have been retightening?
couldn't you have been retightening?
couldn't they have been retightening?