English verb conjugation CAN MARK

Regular verb: mark - marked - marked

Affirmation

Simple form

I can mark
you can mark
she can mark
we can mark
you can mark
they can mark

V-ing form

I can be marking
you can be marking
she can be marking
we can be marking
you can be marking
they can be marking

Perfect

I can have marked
you can have marked
she can have marked
we can have marked
you can have marked
they can have marked

V-ing perfect

I can have been marking
you can have been marking
she can have been marking
we can have been marking
you can have been marking
they can have been marking

Negation

Simple form

I can't mark
you can't mark
she can't mark
we can't mark
you can't mark
they can't mark

V-ing form

I can't be marking
you can't be marking
she can't be marking
we can't be marking
you can't be marking
they can't be marking

Perfect

I can't have marked
you can't have marked
she can't have marked
we can't have marked
you can't have marked
they can't have marked

V-ing perfect

I can't have been marking
you can't have been marking
she can't have been marking
we can't have been marking
you can't have been marking
they can't have been marking

Interrogative form

Simple form

can I mark?
can you mark?
can she mark?
can we mark?
can you mark?
can they mark?

V-ing form

can I be marking?
can you be marking?
can she be marking?
can we be marking?
can you be marking?
can they be marking?

Perfect

can I have marked?
can you have marked?
can she have marked?
can we have marked?
can you have marked?
can they have marked?

V-ing perfect

can I have been marking?
can you have been marking?
can she have been marking?
can we have been marking?
can you have been marking?
can they have been marking?

Interro-negative form

Simple form

can't I mark?
can't you mark?
can't she mark?
can't we mark?
can't you mark?
can't they mark?

V-ing form

can't I be marking?
can't you be marking?
can't she be marking?
can't we be marking?
can't you be marking?
can't they be marking?

Perfect

can't I have marked?
can't you have marked?
can't she have marked?
can't we have marked?
can't you have marked?
can't they have marked?

V-ing perfect

can't I have been marking?
can't you have been marking?
can't she have been marking?
can't we have been marking?
can't you have been marking?
can't they have been marking?

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