English verb conjugation CAN CONTEST

Regular verb: contest - contested - contested

Affirmation

Simple form

I can contest
you can contest
he can contest
we can contest
you can contest
they can contest

V-ing form

I can be contesting
you can be contesting
he can be contesting
we can be contesting
you can be contesting
they can be contesting

Perfect

I can have contested
you can have contested
he can have contested
we can have contested
you can have contested
they can have contested

V-ing perfect

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

Negation

Simple form

I cannot contest
you cannot contest
he cannot contest
we cannot contest
you cannot contest
they cannot contest

V-ing form

I cannot be contesting
you cannot be contesting
he cannot be contesting
we cannot be contesting
you cannot be contesting
they cannot be contesting

Perfect

I cannot have contested
you cannot have contested
he cannot have contested
we cannot have contested
you cannot have contested
they cannot have contested

V-ing perfect

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

Interrogative form

Simple form

can I contest?
can you contest?
can he contest?
can we contest?
can you contest?
can they contest?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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