could jab
Verbo regular: jab - jabbed- jabbed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could jab
you could jab
she could jab
we could jab
you could jab
they could jab 	I could be jabbing
you could be jabbing
she could be jabbing
we could be jabbing
you could be jabbing
they could be jabbing	I could have jabbed
you could have jabbed
she could have jabbed
we could have jabbed
you could have jabbed
they could have jabbed	I could have been jabbing
you could have been jabbing
she could have been jabbing
we could have been jabbing
you could have been jabbing
they could have been jabbing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't jab
you couldn't jab
she couldn't jab
we couldn't jab
you couldn't jab
they couldn't jab 	I couldn't be jabbing
you couldn't be jabbing
she couldn't be jabbing
we couldn't be jabbing
you couldn't be jabbing
they couldn't be jabbing	I couldn't have jabbed
you couldn't have jabbed
she couldn't have jabbed
we couldn't have jabbed
you couldn't have jabbed
they couldn't have jabbed	I couldn't have been jabbing
you couldn't have been jabbing
she couldn't have been jabbing
we couldn't have been jabbing
you couldn't have been jabbing
they couldn't have been jabbing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I jab?
could you jab?
could she jab?
could we jab?
could you jab?
could they jab? 	could I be jabbing?
could you be jabbing?
could she be jabbing?
could we be jabbing?
could you be jabbing?
could they be jabbing? 	could I have jabbed?
could you have jabbed?
could she have jabbed?
could we have jabbed?
could you have jabbed?
could they have jabbed? 	could I have been jabbing?
could you have been jabbing?
could she have been jabbing?
could we have been jabbing?
could you have been jabbing?
could they have been jabbing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I jab?
couldn't you jab?
couldn't she jab?
couldn't we jab?
couldn't you jab?
couldn't they jab? 	couldn't I be jabbing?
couldn't you be jabbing?
couldn't she be jabbing?
couldn't we be jabbing?
couldn't you be jabbing?
couldn't they be jabbing? 	couldn't I have jabbed?
couldn't you have jabbed?
couldn't she have jabbed?
couldn't we have jabbed?
couldn't you have jabbed?
couldn't they have jabbed? 	couldn't I have been jabbing?
couldn't you have been jabbing?
couldn't she have been jabbing?
couldn't we have been jabbing?
couldn't you have been jabbing?
couldn't they have been jabbing?