I could crack you could crack she could crack we could crack you could crack they could crack
Forma com V-ing
I could be cracking you could be cracking she could be cracking we could be cracking you could be cracking they could be cracking
Perfeito
I could have cracked you could have cracked she could have cracked we could have cracked you could have cracked they could have cracked
Perfeito com V-ing
I could have been cracking you could have been cracking she could have been cracking we could have been cracking you could have been cracking they could have been cracking
Negação
Forma simple
I couldn't crack you couldn't crack she couldn't crack we couldn't crack you couldn't crack they couldn't crack
Forma com V-ing
I couldn't be cracking you couldn't be cracking she couldn't be cracking we couldn't be cracking you couldn't be cracking they couldn't be cracking
Perfeito
I couldn't have cracked you couldn't have cracked she couldn't have cracked we couldn't have cracked you couldn't have cracked they couldn't have cracked
Perfeito com V-ing
I couldn't have been cracking you couldn't have been cracking she couldn't have been cracking we couldn't have been cracking you couldn't have been cracking they couldn't have been cracking
Forma interrogativa
Forma simple
could I crack? could you crack? could she crack? could we crack? could you crack? could they crack?
Forma com V-ing
could I be cracking? could you be cracking? could she be cracking? could we be cracking? could you be cracking? could they be cracking?
Perfeito
could I have cracked? could you have cracked? could she have cracked? could we have cracked? could you have cracked? could they have cracked?
Perfeito com V-ing
could I have been cracking? could you have been cracking? could she have been cracking? could we have been cracking? could you have been cracking? could they have been cracking?
Forma interro-Negação
Forma simple
couldn't I crack? couldn't you crack? couldn't she crack? couldn't we crack? couldn't you crack? couldn't they crack?
Forma com V-ing
couldn't I be cracking? couldn't you be cracking? couldn't she be cracking? couldn't we be cracking? couldn't you be cracking? couldn't they be cracking?
Perfeito
couldn't I have cracked? couldn't you have cracked? couldn't she have cracked? couldn't we have cracked? couldn't you have cracked? couldn't they have cracked?
Perfeito com V-ing
couldn't I have been cracking? couldn't you have been cracking? couldn't she have been cracking? couldn't we have been cracking? couldn't you have been cracking? couldn't they have been cracking?