I could vein you could vein he could vein we could vein you could vein they could vein
Forma com V-ing
I could be veining you could be veining he could be veining we could be veining you could be veining they could be veining
Perfeito
I could have veined you could have veined he could have veined we could have veined you could have veined they could have veined
Perfeito com V-ing
I could have been veining you could have been veining he could have been veining we could have been veining you could have been veining they could have been veining
Negação
Forma simple
I couldn't vein you couldn't vein he couldn't vein we couldn't vein you couldn't vein they couldn't vein
Forma com V-ing
I couldn't be veining you couldn't be veining he couldn't be veining we couldn't be veining you couldn't be veining they couldn't be veining
Perfeito
I couldn't have veined you couldn't have veined he couldn't have veined we couldn't have veined you couldn't have veined they couldn't have veined
Perfeito com V-ing
I couldn't have been veining you couldn't have been veining he couldn't have been veining we couldn't have been veining you couldn't have been veining they couldn't have been veining
Forma interrogativa
Forma simple
could I vein? could you vein? could he vein? could we vein? could you vein? could they vein?
Forma com V-ing
could I be veining? could you be veining? could he be veining? could we be veining? could you be veining? could they be veining?
Perfeito
could I have veined? could you have veined? could he have veined? could we have veined? could you have veined? could they have veined?
Perfeito com V-ing
could I have been veining? could you have been veining? could he have been veining? could we have been veining? could you have been veining? could they have been veining?
Forma interro-Negação
Forma simple
couldn't I vein? couldn't you vein? couldn't he vein? couldn't we vein? couldn't you vein? couldn't they vein?
Forma com V-ing
couldn't I be veining? couldn't you be veining? couldn't he be veining? couldn't we be veining? couldn't you be veining? couldn't they be veining?
Perfeito
couldn't I have veined? couldn't you have veined? couldn't he have veined? couldn't we have veined? couldn't you have veined? couldn't they have veined?
Perfeito com V-ing
couldn't I have been veining? couldn't you have been veining? couldn't he have been veining? couldn't we have been veining? couldn't you have been veining? couldn't they have been veining?