I could confer you could confer he could confer we could confer you could confer they could confer
Forma com V-ing
I could be conferring you could be conferring he could be conferring we could be conferring you could be conferring they could be conferring
Perfeito
I could have conferred you could have conferred he could have conferred we could have conferred you could have conferred they could have conferred
Perfeito com V-ing
I could have been conferring you could have been conferring he could have been conferring we could have been conferring you could have been conferring they could have been conferring
Negação
Forma simple
I couldn't confer you couldn't confer he couldn't confer we couldn't confer you couldn't confer they couldn't confer
Forma com V-ing
I couldn't be conferring you couldn't be conferring he couldn't be conferring we couldn't be conferring you couldn't be conferring they couldn't be conferring
Perfeito
I couldn't have conferred you couldn't have conferred he couldn't have conferred we couldn't have conferred you couldn't have conferred they couldn't have conferred
Perfeito com V-ing
I couldn't have been conferring you couldn't have been conferring he couldn't have been conferring we couldn't have been conferring you couldn't have been conferring they couldn't have been conferring
Forma interrogativa
Forma simple
could I confer? could you confer? could he confer? could we confer? could you confer? could they confer?
Forma com V-ing
could I be conferring? could you be conferring? could he be conferring? could we be conferring? could you be conferring? could they be conferring?
Perfeito
could I have conferred? could you have conferred? could he have conferred? could we have conferred? could you have conferred? could they have conferred?
Perfeito com V-ing
could I have been conferring? could you have been conferring? could he have been conferring? could we have been conferring? could you have been conferring? could they have been conferring?
Forma interro-Negação
Forma simple
couldn't I confer? couldn't you confer? couldn't he confer? couldn't we confer? couldn't you confer? couldn't they confer?
Forma com V-ing
couldn't I be conferring? couldn't you be conferring? couldn't he be conferring? couldn't we be conferring? couldn't you be conferring? couldn't they be conferring?
Perfeito
couldn't I have conferred? couldn't you have conferred? couldn't he have conferred? couldn't we have conferred? couldn't you have conferred? couldn't they have conferred?
Perfeito com V-ing
couldn't I have been conferring? couldn't you have been conferring? couldn't he have been conferring? couldn't we have been conferring? couldn't you have been conferring? couldn't they have been conferring?