could sag
Verbo regular: sag - sagged- sagged

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could sag
you could sag
he could sag
we could sag
you could sag
they could sag 	I could be sagging
you could be sagging
he could be sagging
we could be sagging
you could be sagging
they could be sagging	I could have sagged
you could have sagged
he could have sagged
we could have sagged
you could have sagged
they could have sagged	I could have been sagging
you could have been sagging
he could have been sagging
we could have been sagging
you could have been sagging
they could have been sagging	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't sag
you couldn't sag
he couldn't sag
we couldn't sag
you couldn't sag
they couldn't sag 	I couldn't be sagging
you couldn't be sagging
he couldn't be sagging
we couldn't be sagging
you couldn't be sagging
they couldn't be sagging	I couldn't have sagged
you couldn't have sagged
he couldn't have sagged
we couldn't have sagged
you couldn't have sagged
they couldn't have sagged	I couldn't have been sagging
you couldn't have been sagging
he couldn't have been sagging
we couldn't have been sagging
you couldn't have been sagging
they couldn't have been sagging	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I sag?
could you sag?
could he sag?
could we sag?
could you sag?
could they sag? 	could I be sagging?
could you be sagging?
could he be sagging?
could we be sagging?
could you be sagging?
could they be sagging? 	could I have sagged?
could you have sagged?
could he have sagged?
could we have sagged?
could you have sagged?
could they have sagged? 	could I have been sagging?
could you have been sagging?
could he have been sagging?
could we have been sagging?
could you have been sagging?
could they have been sagging? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I sag?
couldn't you sag?
couldn't he sag?
couldn't we sag?
couldn't you sag?
couldn't they sag? 	couldn't I be sagging?
couldn't you be sagging?
couldn't he be sagging?
couldn't we be sagging?
couldn't you be sagging?
couldn't they be sagging? 	couldn't I have sagged?
couldn't you have sagged?
couldn't he have sagged?
couldn't we have sagged?
couldn't you have sagged?
couldn't they have sagged? 	couldn't I have been sagging?
couldn't you have been sagging?
couldn't he have been sagging?
couldn't we have been sagging?
couldn't you have been sagging?
couldn't they have been sagging?