I could callus you could callus he could callus we could callus you could callus they could callus
Forma con V-ing
I could be callusing you could be callusing he could be callusing we could be callusing you could be callusing they could be callusing
Perfecto
I could have callused you could have callused he could have callused we could have callused you could have callused they could have callused
Perfecto con V-ing
I could have been callusing you could have been callusing he could have been callusing we could have been callusing you could have been callusing they could have been callusing
Negación
Forma simple
I couldn't callus you couldn't callus he couldn't callus we couldn't callus you couldn't callus they couldn't callus
Forma con V-ing
I couldn't be callusing you couldn't be callusing he couldn't be callusing we couldn't be callusing you couldn't be callusing they couldn't be callusing
Perfecto
I couldn't have callused you couldn't have callused he couldn't have callused we couldn't have callused you couldn't have callused they couldn't have callused
Perfecto con V-ing
I couldn't have been callusing you couldn't have been callusing he couldn't have been callusing we couldn't have been callusing you couldn't have been callusing they couldn't have been callusing
Forma interrogativa
Forma simple
could I callus? could you callus? could he callus? could we callus? could you callus? could they callus?
Forma con V-ing
could I be callusing? could you be callusing? could he be callusing? could we be callusing? could you be callusing? could they be callusing?
Perfecto
could I have callused? could you have callused? could he have callused? could we have callused? could you have callused? could they have callused?
Perfecto con V-ing
could I have been callusing? could you have been callusing? could he have been callusing? could we have been callusing? could you have been callusing? could they have been callusing?
Forma interro-negativa
Forma simple
couldn't I callus? couldn't you callus? couldn't he callus? couldn't we callus? couldn't you callus? couldn't they callus?
Forma con V-ing
couldn't I be callusing? couldn't you be callusing? couldn't he be callusing? couldn't we be callusing? couldn't you be callusing? couldn't they be callusing?
Perfecto
couldn't I have callused? couldn't you have callused? couldn't he have callused? couldn't we have callused? couldn't you have callused? couldn't they have callused?
Perfecto con V-ing
couldn't I have been callusing? couldn't you have been callusing? couldn't he have been callusing? couldn't we have been callusing? couldn't you have been callusing? couldn't they have been callusing?