Conjugación del verbo inglés
COULD CHECKMATE

Verbo regular: checkmate - checkmated - checkmated

Afirmación

Forma simple	Forma con V-ing
I could checkmate you could checkmate she could checkmate we could checkmate you could checkmate they could checkmate	I could be checkmating you could be checkmating she could be checkmating we could be checkmating you could be checkmating they could be checkmating
Perfecto	Perfecto con V-ing
I could have checkmated you could have checkmated she could have checkmated we could have checkmated you could have checkmated they could have checkmated	I could have been checkmating you could have been checkmating she could have been checkmating we could have been checkmating you could have been checkmating they could have been checkmating

Negación

Forma simple	Forma con V-ing
I could not checkmate you could not checkmate she could not checkmate we could not checkmate you could not checkmate they could not checkmate	I could not be checkmating you could not be checkmating she could not be checkmating we could not be checkmating you could not be checkmating they could not be checkmating
Perfecto	Perfecto con V-ing
I could not have checkmated you could not have checkmated she could not have checkmated we could not have checkmated you could not have checkmated they could not have checkmated	I could not have been checkmating you could not have been checkmating she could not have been checkmating we could not have been checkmating you could not have been checkmating they could not have been checkmating

Forma interrogativa

Forma simple	Forma con V-ing
could I checkmate? could you checkmate? could she checkmate? could we checkmate? could you checkmate? could they checkmate?	could I be checkmating? could you be checkmating? could she be checkmating? could we be checkmating? could you be checkmating? could they be checkmating?
Perfecto	Perfecto con V-ing
could I have checkmated? could you have checkmated? could she have checkmated? could we have checkmated? could you have checkmated? could they have checkmated?	could I have been checkmating? could you have been checkmating? could she have been checkmating? could we have been checkmating? could you have been checkmating? could they have been checkmating?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not checkmate? could you not checkmate? could she not checkmate? could we not checkmate? could you not checkmate? could they not checkmate?	could I not be checkmating? could you not be checkmating? could she not be checkmating? could we not be checkmating? could you not be checkmating? could they not be checkmating?
Perfecto	Perfecto con V-ing
could I not have checkmated? could you not have checkmated? could she not have checkmated? could we not have checkmated? could you not have checkmated? could they not have checkmated?	could I not have been checkmating? could you not have been checkmating? could she not have been checkmating? could we not have been checkmating? could you not have been checkmating? could they not have been checkmating?