I could calve you could calve he could calve we could calve you could calve they could calve
Forma com V-ing
I could be calving you could be calving he could be calving we could be calving you could be calving they could be calving
Perfeito
I could have calved you could have calved he could have calved we could have calved you could have calved they could have calved
Perfeito com V-ing
I could have been calving you could have been calving he could have been calving we could have been calving you could have been calving they could have been calving
Negação
Forma simple
I couldn't calve you couldn't calve he couldn't calve we couldn't calve you couldn't calve they couldn't calve
Forma com V-ing
I couldn't be calving you couldn't be calving he couldn't be calving we couldn't be calving you couldn't be calving they couldn't be calving
Perfeito
I couldn't have calved you couldn't have calved he couldn't have calved we couldn't have calved you couldn't have calved they couldn't have calved
Perfeito com V-ing
I couldn't have been calving you couldn't have been calving he couldn't have been calving we couldn't have been calving you couldn't have been calving they couldn't have been calving
Forma interrogativa
Forma simple
could I calve? could you calve? could he calve? could we calve? could you calve? could they calve?
Forma com V-ing
could I be calving? could you be calving? could he be calving? could we be calving? could you be calving? could they be calving?
Perfeito
could I have calved? could you have calved? could he have calved? could we have calved? could you have calved? could they have calved?
Perfeito com V-ing
could I have been calving? could you have been calving? could he have been calving? could we have been calving? could you have been calving? could they have been calving?
Forma interro-Negação
Forma simple
couldn't I calve? couldn't you calve? couldn't he calve? couldn't we calve? couldn't you calve? couldn't they calve?
Forma com V-ing
couldn't I be calving? couldn't you be calving? couldn't he be calving? couldn't we be calving? couldn't you be calving? couldn't they be calving?
Perfeito
couldn't I have calved? couldn't you have calved? couldn't he have calved? couldn't we have calved? couldn't you have calved? couldn't they have calved?
Perfeito com V-ing
couldn't I have been calving? couldn't you have been calving? couldn't he have been calving? couldn't we have been calving? couldn't you have been calving? couldn't they have been calving?