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 cannot mark
you cannot mark
she cannot mark
we cannot mark
you cannot mark
they cannot mark

V-ing form

I cannot be marking
you cannot be marking
she cannot be marking
we cannot be marking
you cannot be marking
they cannot be marking

Perfect

I cannot have marked
you cannot have marked
she cannot have marked
we cannot have marked
you cannot have marked
they cannot have marked

V-ing perfect

I cannot have been marking
you cannot have been marking
she cannot have been marking
we cannot have been marking
you cannot have been marking
they cannot 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 I not mark?
can you not mark?
can she not mark?
can we not mark?
can you not mark?
can they not mark?

V-ing form

can I not be marking?
can you not be marking?
can she not be marking?
can we not be marking?
can you not be marking?
can they not be marking?

Perfect

can I not have marked?
can you not have marked?
can she not have marked?
can we not have marked?
can you not have marked?
can they not have marked?

V-ing perfect

can I not have been marking?
can you not have been marking?
can she not have been marking?
can we not have been marking?
can you not have been marking?
can they not have been marking?

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