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 can't checker
you can't checker
he can't checker
we can't checker
you can't checker
they can't checker

V-ing form

I can't be checkering
you can't be checkering
he can't be checkering
we can't be checkering
you can't be checkering
they can't be checkering

Perfect

I can't have checkered
you can't have checkered
he can't have checkered
we can't have checkered
you can't have checkered
they can't have checkered

V-ing perfect

I can't have been checkering
you can't have been checkering
he can't have been checkering
we can't have been checkering
you can't have been checkering
they can't 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't I checker?
can't you checker?
can't he checker?
can't we checker?
can't you checker?
can't they checker?

V-ing form

can't I be checkering?
can't you be checkering?
can't he be checkering?
can't we be checkering?
can't you be checkering?
can't they be checkering?

Perfect

can't I have checkered?
can't you have checkered?
can't he have checkered?
can't we have checkered?
can't you have checkered?
can't they have checkered?

V-ing perfect

can't I have been checkering?
can't you have been checkering?
can't he have been checkering?
can't we have been checkering?
can't you have been checkering?
can't they have been checkering?

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