Conjugación del verbo inglés
COULD REQUIRE

Verbo regular: require - required - required

Afirmación

Forma simple	Forma con V-ing
I could require you could require he could require we could require you could require they could require	I could be requiring you could be requiring he could be requiring we could be requiring you could be requiring they could be requiring
Perfecto	Perfecto con V-ing
I could have required you could have required he could have required we could have required you could have required they could have required	I could have been requiring you could have been requiring he could have been requiring we could have been requiring you could have been requiring they could have been requiring

Negación

Forma simple	Forma con V-ing
I couldn't require you couldn't require he couldn't require we couldn't require you couldn't require they couldn't require	I couldn't be requiring you couldn't be requiring he couldn't be requiring we couldn't be requiring you couldn't be requiring they couldn't be requiring
Perfecto	Perfecto con V-ing
I couldn't have required you couldn't have required he couldn't have required we couldn't have required you couldn't have required they couldn't have required	I couldn't have been requiring you couldn't have been requiring he couldn't have been requiring we couldn't have been requiring you couldn't have been requiring they couldn't have been requiring

Forma interrogativa

Forma simple	Forma con V-ing
could I require? could you require? could he require? could we require? could you require? could they require?	could I be requiring? could you be requiring? could he be requiring? could we be requiring? could you be requiring? could they be requiring?
Perfecto	Perfecto con V-ing
could I have required? could you have required? could he have required? could we have required? could you have required? could they have required?	could I have been requiring? could you have been requiring? could he have been requiring? could we have been requiring? could you have been requiring? could they have been requiring?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I require? couldn't you require? couldn't he require? couldn't we require? couldn't you require? couldn't they require?	couldn't I be requiring? couldn't you be requiring? couldn't he be requiring? couldn't we be requiring? couldn't you be requiring? couldn't they be requiring?
Perfecto	Perfecto con V-ing
couldn't I have required? couldn't you have required? couldn't he have required? couldn't we have required? couldn't you have required? couldn't they have required?	couldn't I have been requiring? couldn't you have been requiring? couldn't he have been requiring? couldn't we have been requiring? couldn't you have been requiring? couldn't they have been requiring?