I can serge you can serge she can serge we can serge you can serge they can serge
Forma com V-ing
I can be serging you can be serging she can be serging we can be serging you can be serging they can be serging
Perfeito
I can have serged you can have serged she can have serged we can have serged you can have serged they can have serged
Perfeito com V-ing
I can have been serging you can have been serging she can have been serging we can have been serging you can have been serging they can have been serging
Negação
Forma simple
I can't serge you can't serge she can't serge we can't serge you can't serge they can't serge
Forma com V-ing
I can't be serging you can't be serging she can't be serging we can't be serging you can't be serging they can't be serging
Perfeito
I can't have serged you can't have serged she can't have serged we can't have serged you can't have serged they can't have serged
Perfeito com V-ing
I can't have been serging you can't have been serging she can't have been serging we can't have been serging you can't have been serging they can't have been serging
Forma interrogativa
Forma simple
can I serge? can you serge? can she serge? can we serge? can you serge? can they serge?
Forma com V-ing
can I be serging? can you be serging? can she be serging? can we be serging? can you be serging? can they be serging?
Perfeito
can I have serged? can you have serged? can she have serged? can we have serged? can you have serged? can they have serged?
Perfeito com V-ing
can I have been serging? can you have been serging? can she have been serging? can we have been serging? can you have been serging? can they have been serging?
Forma interro-Negação
Forma simple
can't I serge? can't you serge? can't she serge? can't we serge? can't you serge? can't they serge?
Forma com V-ing
can't I be serging? can't you be serging? can't she be serging? can't we be serging? can't you be serging? can't they be serging?
Perfeito
can't I have serged? can't you have serged? can't she have serged? can't we have serged? can't you have serged? can't they have serged?
Perfeito com V-ing
can't I have been serging? can't you have been serging? can't she have been serging? can't we have been serging? can't you have been serging? can't they have been serging?