I could fax you could fax she could fax we could fax you could fax they could fax
Forma com V-ing
I could be faxing you could be faxing she could be faxing we could be faxing you could be faxing they could be faxing
Perfeito
I could have faxed you could have faxed she could have faxed we could have faxed you could have faxed they could have faxed
Perfeito com V-ing
I could have been faxing you could have been faxing she could have been faxing we could have been faxing you could have been faxing they could have been faxing
Negação
Forma simple
I couldn't fax you couldn't fax she couldn't fax we couldn't fax you couldn't fax they couldn't fax
Forma com V-ing
I couldn't be faxing you couldn't be faxing she couldn't be faxing we couldn't be faxing you couldn't be faxing they couldn't be faxing
Perfeito
I couldn't have faxed you couldn't have faxed she couldn't have faxed we couldn't have faxed you couldn't have faxed they couldn't have faxed
Perfeito com V-ing
I couldn't have been faxing you couldn't have been faxing she couldn't have been faxing we couldn't have been faxing you couldn't have been faxing they couldn't have been faxing
Forma interrogativa
Forma simple
could I fax? could you fax? could she fax? could we fax? could you fax? could they fax?
Forma com V-ing
could I be faxing? could you be faxing? could she be faxing? could we be faxing? could you be faxing? could they be faxing?
Perfeito
could I have faxed? could you have faxed? could she have faxed? could we have faxed? could you have faxed? could they have faxed?
Perfeito com V-ing
could I have been faxing? could you have been faxing? could she have been faxing? could we have been faxing? could you have been faxing? could they have been faxing?
Forma interro-Negação
Forma simple
couldn't I fax? couldn't you fax? couldn't she fax? couldn't we fax? couldn't you fax? couldn't they fax?
Forma com V-ing
couldn't I be faxing? couldn't you be faxing? couldn't she be faxing? couldn't we be faxing? couldn't you be faxing? couldn't they be faxing?
Perfeito
couldn't I have faxed? couldn't you have faxed? couldn't she have faxed? couldn't we have faxed? couldn't you have faxed? couldn't they have faxed?
Perfeito com V-ing
couldn't I have been faxing? couldn't you have been faxing? couldn't she have been faxing? couldn't we have been faxing? couldn't you have been faxing? couldn't they have been faxing?