Conjugación del verbo inglés
COULD BUILD

Verbo irregular: build - built - built

Afirmación

Forma simple	Forma con V-ing
I could build you could build he could build we could build you could build they could build	I could be building you could be building he could be building we could be building you could be building they could be building
Perfecto	Perfecto con V-ing
I could have built you could have built he could have built we could have built you could have built they could have built	I could have been building you could have been building he could have been building we could have been building you could have been building they could have been building

Negación

Forma simple	Forma con V-ing
I could not build you could not build he could not build we could not build you could not build they could not build	I could not be building you could not be building he could not be building we could not be building you could not be building they could not be building
Perfecto	Perfecto con V-ing
I could not have built you could not have built he could not have built we could not have built you could not have built they could not have built	I could not have been building you could not have been building he could not have been building we could not have been building you could not have been building they could not have been building

Forma interrogativa

Forma simple	Forma con V-ing
could I build? could you build? could he build? could we build? could you build? could they build?	could I be building? could you be building? could he be building? could we be building? could you be building? could they be building?
Perfecto	Perfecto con V-ing
could I have built? could you have built? could he have built? could we have built? could you have built? could they have built?	could I have been building? could you have been building? could he have been building? could we have been building? could you have been building? could they have been building?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not build? could you not build? could he not build? could we not build? could you not build? could they not build?	could I not be building? could you not be building? could he not be building? could we not be building? could you not be building? could they not be building?
Perfecto	Perfecto con V-ing
could I not have built? could you not have built? could he not have built? could we not have built? could you not have built? could they not have built?	could I not have been building? could you not have been building? could he not have been building? could we not have been building? could you not have been building? could they not have been building?