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