English verb conjugation CAN CHECKER

Regular verb: checker - checkered - checkered

Affirmation

Simple form

I can checker
you can checker
he can checker
we can checker
you can checker
they can checker

V-ing form

I can be checkering
you can be checkering
he can be checkering
we can be checkering
you can be checkering
they can be checkering

Perfect

I can have checkered
you can have checkered
he can have checkered
we can have checkered
you can have checkered
they can have checkered

V-ing perfect

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

Negation

Simple form

I cannot checker
you cannot checker
he cannot checker
we cannot checker
you cannot checker
they cannot checker

V-ing form

I cannot be checkering
you cannot be checkering
he cannot be checkering
we cannot be checkering
you cannot be checkering
they cannot be checkering

Perfect

I cannot have checkered
you cannot have checkered
he cannot have checkered
we cannot have checkered
you cannot have checkered
they cannot have checkered

V-ing perfect

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

Interrogative form

Simple form

can I checker?
can you checker?
can he checker?
can we checker?
can you checker?
can they checker?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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