English verb conjugation CAN IMPROVE

Regular verb: improve - improved - improved

Affirmation

Simple form

I can improve
you can improve
he can improve
we can improve
you can improve
they can improve

V-ing form

I can be improving
you can be improving
he can be improving
we can be improving
you can be improving
they can be improving

Perfect

I can have improved
you can have improved
he can have improved
we can have improved
you can have improved
they can have improved

V-ing perfect

I can have been improving
you can have been improving
he can have been improving
we can have been improving
you can have been improving
they can have been improving

Negation

Simple form

I cannot improve
you cannot improve
he cannot improve
we cannot improve
you cannot improve
they cannot improve

V-ing form

I cannot be improving
you cannot be improving
he cannot be improving
we cannot be improving
you cannot be improving
they cannot be improving

Perfect

I cannot have improved
you cannot have improved
he cannot have improved
we cannot have improved
you cannot have improved
they cannot have improved

V-ing perfect

I cannot have been improving
you cannot have been improving
he cannot have been improving
we cannot have been improving
you cannot have been improving
they cannot have been improving

Interrogative form

Simple form

can I improve?
can you improve?
can he improve?
can we improve?
can you improve?
can they improve?

V-ing form

can I be improving?
can you be improving?
can he be improving?
can we be improving?
can you be improving?
can they be improving?

Perfect

can I have improved?
can you have improved?
can he have improved?
can we have improved?
can you have improved?
can they have improved?

V-ing perfect

can I have been improving?
can you have been improving?
can he have been improving?
can we have been improving?
can you have been improving?
can they have been improving?

Interro-negative form

Simple form

can I not improve?
can you not improve?
can he not improve?
can we not improve?
can you not improve?
can they not improve?

V-ing form

can I not be improving?
can you not be improving?
can he not be improving?
can we not be improving?
can you not be improving?
can they not be improving?

Perfect

can I not have improved?
can you not have improved?
can he not have improved?
can we not have improved?
can you not have improved?
can they not have improved?

V-ing perfect

can I not have been improving?
can you not have been improving?
can he not have been improving?
can we not have been improving?
can you not have been improving?
can they not have been improving?

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