Conjugação do verbo inglês
CAN MARK

Verbo regular: mark - marked - marked

Afirmação

Forma simple	Forma com V-ing
I can mark you can mark he can mark we can mark you can mark they can mark	I can be marking you can be marking he 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 he 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 he 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 can't mark you can't mark he can't mark we can't mark you can't mark they can't mark	I can't be marking you can't be marking he can't be marking we can't be marking you can't be marking they can't be marking
Perfeito	Perfeito com V-ing
I can't have marked you can't have marked he can't have marked we can't have marked you can't have marked they can't have marked	I can't have been marking you can't have been marking he can't have been marking we can't have been marking you can't have been marking they can't have been marking

Forma interrogativa

Forma simple	Forma com V-ing
can I mark? can you mark? can he mark? can we mark? can you mark? can they mark?	can I be marking? can you be marking? can he 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 he 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 he 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't I mark? can't you mark? can't he mark? can't we mark? can't you mark? can't they mark?	can't I be marking? can't you be marking? can't he be marking? can't we be marking? can't you be marking? can't they be marking?
Perfeito	Perfeito com V-ing
can't I have marked? can't you have marked? can't he have marked? can't we have marked? can't you have marked? can't they have marked?	can't I have been marking? can't you have been marking? can't he have been marking? can't we have been marking? can't you have been marking? can't they have been marking?