male gender | Modal : no | may | might | can | could | shall | should | will | would | must | ought to
English verb conjugation CAN TIGHTEN
Regular verb: tighten - tightened - tightened
Affirmation
Simple form
I can tightenyou can tighten
she can tighten
we can tighten
you can tighten
they can tighten
V-ing form
I can be tighteningyou can be tightening
she can be tightening
we can be tightening
you can be tightening
they can be tightening
Perfect
I can have tightenedyou can have tightened
she can have tightened
we can have tightened
you can have tightened
they can have tightened
V-ing perfect
I can have been tighteningyou can have been tightening
she can have been tightening
we can have been tightening
you can have been tightening
they can have been tightening
Negation
Simple form
I can't tightenyou can't tighten
she can't tighten
we can't tighten
you can't tighten
they can't tighten
V-ing form
I can't be tighteningyou can't be tightening
she can't be tightening
we can't be tightening
you can't be tightening
they can't be tightening
Perfect
I can't have tightenedyou can't have tightened
she can't have tightened
we can't have tightened
you can't have tightened
they can't have tightened
V-ing perfect
I can't have been tighteningyou can't have been tightening
she can't have been tightening
we can't have been tightening
you can't have been tightening
they can't have been tightening
Interrogative form
Simple form
can I tighten?can you tighten?
can she tighten?
can we tighten?
can you tighten?
can they tighten?
V-ing form
can I be tightening?can you be tightening?
can she be tightening?
can we be tightening?
can you be tightening?
can they be tightening?
Perfect
can I have tightened?can you have tightened?
can she have tightened?
can we have tightened?
can you have tightened?
can they have tightened?
V-ing perfect
can I have been tightening?can you have been tightening?
can she have been tightening?
can we have been tightening?
can you have been tightening?
can they have been tightening?
Interro-negative form
Simple form
can't I tighten?can't you tighten?
can't she tighten?
can't we tighten?
can't you tighten?
can't they tighten?
V-ing form
can't I be tightening?can't you be tightening?
can't she be tightening?
can't we be tightening?
can't you be tightening?
can't they be tightening?
Perfect
can't I have tightened?can't you have tightened?
can't she have tightened?
can't we have tightened?
can't you have tightened?
can't they have tightened?
V-ing perfect
can't I have been tightening?can't you have been tightening?
can't she have been tightening?
can't we have been tightening?
can't you have been tightening?
can't they have been tightening?