Conjugación del verbo inglés
COULD DRAIN

Verbo regular: drain - drained - drained

Afirmación

Forma simple	Forma con V-ing
I could drain you could drain she could drain we could drain you could drain they could drain	I could be draining you could be draining she could be draining we could be draining you could be draining they could be draining
Perfecto	Perfecto con V-ing
I could have drained you could have drained she could have drained we could have drained you could have drained they could have drained	I could have been draining you could have been draining she could have been draining we could have been draining you could have been draining they could have been draining

Negación

Forma simple	Forma con V-ing
I could not drain you could not drain she could not drain we could not drain you could not drain they could not drain	I could not be draining you could not be draining she could not be draining we could not be draining you could not be draining they could not be draining
Perfecto	Perfecto con V-ing
I could not have drained you could not have drained she could not have drained we could not have drained you could not have drained they could not have drained	I could not have been draining you could not have been draining she could not have been draining we could not have been draining you could not have been draining they could not have been draining

Forma interrogativa

Forma simple	Forma con V-ing
could I drain? could you drain? could she drain? could we drain? could you drain? could they drain?	could I be draining? could you be draining? could she be draining? could we be draining? could you be draining? could they be draining?
Perfecto	Perfecto con V-ing
could I have drained? could you have drained? could she have drained? could we have drained? could you have drained? could they have drained?	could I have been draining? could you have been draining? could she have been draining? could we have been draining? could you have been draining? could they have been draining?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not drain? could you not drain? could she not drain? could we not drain? could you not drain? could they not drain?	could I not be draining? could you not be draining? could she not be draining? could we not be draining? could you not be draining? could they not be draining?
Perfecto	Perfecto con V-ing
could I not have drained? could you not have drained? could she not have drained? could we not have drained? could you not have drained? could they not have drained?	could I not have been draining? could you not have been draining? could she not have been draining? could we not have been draining? could you not have been draining? could they not have been draining?