Conjugación del verbo inglés
COULD SMART

Verbo regular: smart - smarted - smarted

Afirmación

Forma simple	Forma con V-ing
I could smart you could smart she could smart we could smart you could smart they could smart	I could be smarting you could be smarting she could be smarting we could be smarting you could be smarting they could be smarting
Perfecto	Perfecto con V-ing
I could have smarted you could have smarted she could have smarted we could have smarted you could have smarted they could have smarted	I could have been smarting you could have been smarting she could have been smarting we could have been smarting you could have been smarting they could have been smarting

Negación

Forma simple	Forma con V-ing
I couldn't smart you couldn't smart she couldn't smart we couldn't smart you couldn't smart they couldn't smart	I couldn't be smarting you couldn't be smarting she couldn't be smarting we couldn't be smarting you couldn't be smarting they couldn't be smarting
Perfecto	Perfecto con V-ing
I couldn't have smarted you couldn't have smarted she couldn't have smarted we couldn't have smarted you couldn't have smarted they couldn't have smarted	I couldn't have been smarting you couldn't have been smarting she couldn't have been smarting we couldn't have been smarting you couldn't have been smarting they couldn't have been smarting

Forma interrogativa

Forma simple	Forma con V-ing
could I smart? could you smart? could she smart? could we smart? could you smart? could they smart?	could I be smarting? could you be smarting? could she be smarting? could we be smarting? could you be smarting? could they be smarting?
Perfecto	Perfecto con V-ing
could I have smarted? could you have smarted? could she have smarted? could we have smarted? could you have smarted? could they have smarted?	could I have been smarting? could you have been smarting? could she have been smarting? could we have been smarting? could you have been smarting? could they have been smarting?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I smart? couldn't you smart? couldn't she smart? couldn't we smart? couldn't you smart? couldn't they smart?	couldn't I be smarting? couldn't you be smarting? couldn't she be smarting? couldn't we be smarting? couldn't you be smarting? couldn't they be smarting?
Perfecto	Perfecto con V-ing
couldn't I have smarted? couldn't you have smarted? couldn't she have smarted? couldn't we have smarted? couldn't you have smarted? couldn't they have smarted?	couldn't I have been smarting? couldn't you have been smarting? couldn't she have been smarting? couldn't we have been smarting? couldn't you have been smarting? couldn't they have been smarting?