I can bur you can bur she can bur we can bur you can bur they can bur
Forma com V-ing
I can be buring you can be buring she can be buring we can be buring you can be buring they can be buring
Perfeito
I can have bured you can have bured she can have bured we can have bured you can have bured they can have bured
Perfeito com V-ing
I can have been buring you can have been buring she can have been buring we can have been buring you can have been buring they can have been buring
Negação
Forma simple
I can't bur you can't bur she can't bur we can't bur you can't bur they can't bur
Forma com V-ing
I can't be buring you can't be buring she can't be buring we can't be buring you can't be buring they can't be buring
Perfeito
I can't have bured you can't have bured she can't have bured we can't have bured you can't have bured they can't have bured
Perfeito com V-ing
I can't have been buring you can't have been buring she can't have been buring we can't have been buring you can't have been buring they can't have been buring
Forma interrogativa
Forma simple
can I bur? can you bur? can she bur? can we bur? can you bur? can they bur?
Forma com V-ing
can I be buring? can you be buring? can she be buring? can we be buring? can you be buring? can they be buring?
Perfeito
can I have bured? can you have bured? can she have bured? can we have bured? can you have bured? can they have bured?
Perfeito com V-ing
can I have been buring? can you have been buring? can she have been buring? can we have been buring? can you have been buring? can they have been buring?
Forma interro-Negação
Forma simple
can't I bur? can't you bur? can't she bur? can't we bur? can't you bur? can't they bur?
Forma com V-ing
can't I be buring? can't you be buring? can't she be buring? can't we be buring? can't you be buring? can't they be buring?
Perfeito
can't I have bured? can't you have bured? can't she have bured? can't we have bured? can't you have bured? can't they have bured?
Perfeito com V-ing
can't I have been buring? can't you have been buring? can't she have been buring? can't we have been buring? can't you have been buring? can't they have been buring?