I could precede you could precede he could precede we could precede you could precede they could precede
Forma com V-ing
I could be preceding you could be preceding he could be preceding we could be preceding you could be preceding they could be preceding
Perfeito
I could have preceded you could have preceded he could have preceded we could have preceded you could have preceded they could have preceded
Perfeito com V-ing
I could have been preceding you could have been preceding he could have been preceding we could have been preceding you could have been preceding they could have been preceding
Negação
Forma simple
I couldn't precede you couldn't precede he couldn't precede we couldn't precede you couldn't precede they couldn't precede
Forma com V-ing
I couldn't be preceding you couldn't be preceding he couldn't be preceding we couldn't be preceding you couldn't be preceding they couldn't be preceding
Perfeito
I couldn't have preceded you couldn't have preceded he couldn't have preceded we couldn't have preceded you couldn't have preceded they couldn't have preceded
Perfeito com V-ing
I couldn't have been preceding you couldn't have been preceding he couldn't have been preceding we couldn't have been preceding you couldn't have been preceding they couldn't have been preceding
Forma interrogativa
Forma simple
could I precede? could you precede? could he precede? could we precede? could you precede? could they precede?
Forma com V-ing
could I be preceding? could you be preceding? could he be preceding? could we be preceding? could you be preceding? could they be preceding?
Perfeito
could I have preceded? could you have preceded? could he have preceded? could we have preceded? could you have preceded? could they have preceded?
Perfeito com V-ing
could I have been preceding? could you have been preceding? could he have been preceding? could we have been preceding? could you have been preceding? could they have been preceding?
Forma interro-Negação
Forma simple
couldn't I precede? couldn't you precede? couldn't he precede? couldn't we precede? couldn't you precede? couldn't they precede?
Forma com V-ing
couldn't I be preceding? couldn't you be preceding? couldn't he be preceding? couldn't we be preceding? couldn't you be preceding? couldn't they be preceding?
Perfeito
couldn't I have preceded? couldn't you have preceded? couldn't he have preceded? couldn't we have preceded? couldn't you have preceded? couldn't they have preceded?
Perfeito com V-ing
couldn't I have been preceding? couldn't you have been preceding? couldn't he have been preceding? couldn't we have been preceding? couldn't you have been preceding? couldn't they have been preceding?