Conjugación del verbo inglés
COULD SOLVE

Verbo regular: solve - solved - solved

Afirmación

Forma simple	Forma con V-ing
I could solve you could solve she could solve we could solve you could solve they could solve	I could be solving you could be solving she could be solving we could be solving you could be solving they could be solving
Perfecto	Perfecto con V-ing
I could have solved you could have solved she could have solved we could have solved you could have solved they could have solved	I could have been solving you could have been solving she could have been solving we could have been solving you could have been solving they could have been solving

Negación

Forma simple	Forma con V-ing
I couldn't solve you couldn't solve she couldn't solve we couldn't solve you couldn't solve they couldn't solve	I couldn't be solving you couldn't be solving she couldn't be solving we couldn't be solving you couldn't be solving they couldn't be solving
Perfecto	Perfecto con V-ing
I couldn't have solved you couldn't have solved she couldn't have solved we couldn't have solved you couldn't have solved they couldn't have solved	I couldn't have been solving you couldn't have been solving she couldn't have been solving we couldn't have been solving you couldn't have been solving they couldn't have been solving

Forma interrogativa

Forma simple	Forma con V-ing
could I solve? could you solve? could she solve? could we solve? could you solve? could they solve?	could I be solving? could you be solving? could she be solving? could we be solving? could you be solving? could they be solving?
Perfecto	Perfecto con V-ing
could I have solved? could you have solved? could she have solved? could we have solved? could you have solved? could they have solved?	could I have been solving? could you have been solving? could she have been solving? could we have been solving? could you have been solving? could they have been solving?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I solve? couldn't you solve? couldn't she solve? couldn't we solve? couldn't you solve? couldn't they solve?	couldn't I be solving? couldn't you be solving? couldn't she be solving? couldn't we be solving? couldn't you be solving? couldn't they be solving?
Perfecto	Perfecto con V-ing
couldn't I have solved? couldn't you have solved? couldn't she have solved? couldn't we have solved? couldn't you have solved? couldn't they have solved?	couldn't I have been solving? couldn't you have been solving? couldn't she have been solving? couldn't we have been solving? couldn't you have been solving? couldn't they have been solving?