English verb conjugation CAN CONCUR

Regular verb: concur - concurred - concurred

Affirmation

Simple form

I can concur
you can concur
he can concur
we can concur
you can concur
they can concur

V-ing form

I can be concurring
you can be concurring
he can be concurring
we can be concurring
you can be concurring
they can be concurring

Perfect

I can have concurred
you can have concurred
he can have concurred
we can have concurred
you can have concurred
they can have concurred

V-ing perfect

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

Negation

Simple form

I cannot concur
you cannot concur
he cannot concur
we cannot concur
you cannot concur
they cannot concur

V-ing form

I cannot be concurring
you cannot be concurring
he cannot be concurring
we cannot be concurring
you cannot be concurring
they cannot be concurring

Perfect

I cannot have concurred
you cannot have concurred
he cannot have concurred
we cannot have concurred
you cannot have concurred
they cannot have concurred

V-ing perfect

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

Interrogative form

Simple form

can I concur?
can you concur?
can he concur?
can we concur?
can you concur?
can they concur?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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