could swear
Verbo irregular: swear - swore- sworn

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could swear
you could swear
she could swear
we could swear
you could swear
they could swear 	I could be swearing
you could be swearing
she could be swearing
we could be swearing
you could be swearing
they could be swearing	I could have sworn
you could have sworn
she could have sworn
we could have sworn
you could have sworn
they could have sworn	I could have been swearing
you could have been swearing
she could have been swearing
we could have been swearing
you could have been swearing
they could have been swearing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't swear
you couldn't swear
she couldn't swear
we couldn't swear
you couldn't swear
they couldn't swear 	I couldn't be swearing
you couldn't be swearing
she couldn't be swearing
we couldn't be swearing
you couldn't be swearing
they couldn't be swearing	I couldn't have sworn
you couldn't have sworn
she couldn't have sworn
we couldn't have sworn
you couldn't have sworn
they couldn't have sworn	I couldn't have been swearing
you couldn't have been swearing
she couldn't have been swearing
we couldn't have been swearing
you couldn't have been swearing
they couldn't have been swearing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I swear?
could you swear?
could she swear?
could we swear?
could you swear?
could they swear? 	could I be swearing?
could you be swearing?
could she be swearing?
could we be swearing?
could you be swearing?
could they be swearing? 	could I have sworn?
could you have sworn?
could she have sworn?
could we have sworn?
could you have sworn?
could they have sworn? 	could I have been swearing?
could you have been swearing?
could she have been swearing?
could we have been swearing?
could you have been swearing?
could they have been swearing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I swear?
couldn't you swear?
couldn't she swear?
couldn't we swear?
couldn't you swear?
couldn't they swear? 	couldn't I be swearing?
couldn't you be swearing?
couldn't she be swearing?
couldn't we be swearing?
couldn't you be swearing?
couldn't they be swearing? 	couldn't I have sworn?
couldn't you have sworn?
couldn't she have sworn?
couldn't we have sworn?
couldn't you have sworn?
couldn't they have sworn? 	couldn't I have been swearing?
couldn't you have been swearing?
couldn't she have been swearing?
couldn't we have been swearing?
couldn't you have been swearing?
couldn't they have been swearing?