Conjugación del verbo inglés
COULD AUTHOR

Verbo regular: author - authored - authored

Afirmación

Forma simple	Forma con V-ing
I could author you could author he could author we could author you could author they could author	I could be authoring you could be authoring he could be authoring we could be authoring you could be authoring they could be authoring
Perfecto	Perfecto con V-ing
I could have authored you could have authored he could have authored we could have authored you could have authored they could have authored	I could have been authoring you could have been authoring he could have been authoring we could have been authoring you could have been authoring they could have been authoring

Negación

Forma simple	Forma con V-ing
I couldn't author you couldn't author he couldn't author we couldn't author you couldn't author they couldn't author	I couldn't be authoring you couldn't be authoring he couldn't be authoring we couldn't be authoring you couldn't be authoring they couldn't be authoring
Perfecto	Perfecto con V-ing
I couldn't have authored you couldn't have authored he couldn't have authored we couldn't have authored you couldn't have authored they couldn't have authored	I couldn't have been authoring you couldn't have been authoring he couldn't have been authoring we couldn't have been authoring you couldn't have been authoring they couldn't have been authoring

Forma interrogativa

Forma simple	Forma con V-ing
could I author? could you author? could he author? could we author? could you author? could they author?	could I be authoring? could you be authoring? could he be authoring? could we be authoring? could you be authoring? could they be authoring?
Perfecto	Perfecto con V-ing
could I have authored? could you have authored? could he have authored? could we have authored? could you have authored? could they have authored?	could I have been authoring? could you have been authoring? could he have been authoring? could we have been authoring? could you have been authoring? could they have been authoring?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I author? couldn't you author? couldn't he author? couldn't we author? couldn't you author? couldn't they author?	couldn't I be authoring? couldn't you be authoring? couldn't he be authoring? couldn't we be authoring? couldn't you be authoring? couldn't they be authoring?
Perfecto	Perfecto con V-ing
couldn't I have authored? couldn't you have authored? couldn't he have authored? couldn't we have authored? couldn't you have authored? couldn't they have authored?	couldn't I have been authoring? couldn't you have been authoring? couldn't he have been authoring? couldn't we have been authoring? couldn't you have been authoring? couldn't they have been authoring?