I can lock you can lock she can lock we can lock you can lock they can lock
Forma com V-ing
I can be locking you can be locking she can be locking we can be locking you can be locking they can be locking
Perfeito
I can have locked you can have locked she can have locked we can have locked you can have locked they can have locked
Perfeito com V-ing
I can have been locking you can have been locking she can have been locking we can have been locking you can have been locking they can have been locking
Negação
Forma simple
I can't lock you can't lock she can't lock we can't lock you can't lock they can't lock
Forma com V-ing
I can't be locking you can't be locking she can't be locking we can't be locking you can't be locking they can't be locking
Perfeito
I can't have locked you can't have locked she can't have locked we can't have locked you can't have locked they can't have locked
Perfeito com V-ing
I can't have been locking you can't have been locking she can't have been locking we can't have been locking you can't have been locking they can't have been locking
Forma interrogativa
Forma simple
can I lock? can you lock? can she lock? can we lock? can you lock? can they lock?
Forma com V-ing
can I be locking? can you be locking? can she be locking? can we be locking? can you be locking? can they be locking?
Perfeito
can I have locked? can you have locked? can she have locked? can we have locked? can you have locked? can they have locked?
Perfeito com V-ing
can I have been locking? can you have been locking? can she have been locking? can we have been locking? can you have been locking? can they have been locking?
Forma interro-Negação
Forma simple
can't I lock? can't you lock? can't she lock? can't we lock? can't you lock? can't they lock?
Forma com V-ing
can't I be locking? can't you be locking? can't she be locking? can't we be locking? can't you be locking? can't they be locking?
Perfeito
can't I have locked? can't you have locked? can't she have locked? can't we have locked? can't you have locked? can't they have locked?
Perfeito com V-ing
can't I have been locking? can't you have been locking? can't she have been locking? can't we have been locking? can't you have been locking? can't they have been locking?