I could crackle you could crackle she could crackle we could crackle you could crackle they could crackle
Forma con V-ing
I could be crackling you could be crackling she could be crackling we could be crackling you could be crackling they could be crackling
Perfecto
I could have crackled you could have crackled she could have crackled we could have crackled you could have crackled they could have crackled
Perfecto con V-ing
I could have been crackling you could have been crackling she could have been crackling we could have been crackling you could have been crackling they could have been crackling
Negación
Forma simple
I couldn't crackle you couldn't crackle she couldn't crackle we couldn't crackle you couldn't crackle they couldn't crackle
Forma con V-ing
I couldn't be crackling you couldn't be crackling she couldn't be crackling we couldn't be crackling you couldn't be crackling they couldn't be crackling
Perfecto
I couldn't have crackled you couldn't have crackled she couldn't have crackled we couldn't have crackled you couldn't have crackled they couldn't have crackled
Perfecto con V-ing
I couldn't have been crackling you couldn't have been crackling she couldn't have been crackling we couldn't have been crackling you couldn't have been crackling they couldn't have been crackling
Forma interrogativa
Forma simple
could I crackle? could you crackle? could she crackle? could we crackle? could you crackle? could they crackle?
Forma con V-ing
could I be crackling? could you be crackling? could she be crackling? could we be crackling? could you be crackling? could they be crackling?
Perfecto
could I have crackled? could you have crackled? could she have crackled? could we have crackled? could you have crackled? could they have crackled?
Perfecto con V-ing
could I have been crackling? could you have been crackling? could she have been crackling? could we have been crackling? could you have been crackling? could they have been crackling?
Forma interro-negativa
Forma simple
couldn't I crackle? couldn't you crackle? couldn't she crackle? couldn't we crackle? couldn't you crackle? couldn't they crackle?
Forma con V-ing
couldn't I be crackling? couldn't you be crackling? couldn't she be crackling? couldn't we be crackling? couldn't you be crackling? couldn't they be crackling?
Perfecto
couldn't I have crackled? couldn't you have crackled? couldn't she have crackled? couldn't we have crackled? couldn't you have crackled? couldn't they have crackled?
Perfecto con V-ing
couldn't I have been crackling? couldn't you have been crackling? couldn't she have been crackling? couldn't we have been crackling? couldn't you have been crackling? couldn't they have been crackling?