Conjugación del verbo inglés
COULD SIN

Verbo regular: sin - sinned - sinned

Afirmación

Forma simple	Forma con V-ing
I could sin you could sin he could sin we could sin you could sin they could sin	I could be sinning you could be sinning he could be sinning we could be sinning you could be sinning they could be sinning
Perfecto	Perfecto con V-ing
I could have sinned you could have sinned he could have sinned we could have sinned you could have sinned they could have sinned	I could have been sinning you could have been sinning he could have been sinning we could have been sinning you could have been sinning they could have been sinning

Negación

Forma simple	Forma con V-ing
I couldn't sin you couldn't sin he couldn't sin we couldn't sin you couldn't sin they couldn't sin	I couldn't be sinning you couldn't be sinning he couldn't be sinning we couldn't be sinning you couldn't be sinning they couldn't be sinning
Perfecto	Perfecto con V-ing
I couldn't have sinned you couldn't have sinned he couldn't have sinned we couldn't have sinned you couldn't have sinned they couldn't have sinned	I couldn't have been sinning you couldn't have been sinning he couldn't have been sinning we couldn't have been sinning you couldn't have been sinning they couldn't have been sinning

Forma interrogativa

Forma simple	Forma con V-ing
could I sin? could you sin? could he sin? could we sin? could you sin? could they sin?	could I be sinning? could you be sinning? could he be sinning? could we be sinning? could you be sinning? could they be sinning?
Perfecto	Perfecto con V-ing
could I have sinned? could you have sinned? could he have sinned? could we have sinned? could you have sinned? could they have sinned?	could I have been sinning? could you have been sinning? could he have been sinning? could we have been sinning? could you have been sinning? could they have been sinning?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I sin? couldn't you sin? couldn't he sin? couldn't we sin? couldn't you sin? couldn't they sin?	couldn't I be sinning? couldn't you be sinning? couldn't he be sinning? couldn't we be sinning? couldn't you be sinning? couldn't they be sinning?
Perfecto	Perfecto con V-ing
couldn't I have sinned? couldn't you have sinned? couldn't he have sinned? couldn't we have sinned? couldn't you have sinned? couldn't they have sinned?	couldn't I have been sinning? couldn't you have been sinning? couldn't he have been sinning? couldn't we have been sinning? couldn't you have been sinning? couldn't they have been sinning?