Conjugação do verbo inglês
CAN MARK

Verbo regular: mark - marked - marked

Afirmação

Forma simple	Forma com V-ing
I can mark you can mark she can mark we can mark you can mark they can mark	I can be marking you can be marking she can be marking we can be marking you can be marking they can be marking
Perfeito	Perfeito com V-ing
I can have marked you can have marked she can have marked we can have marked you can have marked they can have marked	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

Negação

Forma simple	Forma com V-ing
I cannot mark you cannot mark she cannot mark we cannot mark you cannot mark they cannot mark	I cannot be marking you cannot be marking she cannot be marking we cannot be marking you cannot be marking they cannot be marking
Perfeito	Perfeito com V-ing
I cannot have marked you cannot have marked she cannot have marked we cannot have marked you cannot have marked they cannot have marked	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

Forma interrogativa

Forma simple	Forma com V-ing
can I mark? can you mark? can she mark? can we mark? can you mark? can they mark?	can I be marking? can you be marking? can she be marking? can we be marking? can you be marking? can they be marking?
Perfeito	Perfeito com V-ing
can I have marked? can you have marked? can she have marked? can we have marked? can you have marked? can they have marked?	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?

Forma interro-Negação

Forma simple	Forma com V-ing
can I not mark? can you not mark? can she not mark? can we not mark? can you not mark? can they not mark?	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?
Perfeito	Perfeito com V-ing
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?	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?