could grit
Verbo regular: grit - gritted- gritted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could grit
you could grit
she could grit
we could grit
you could grit
they could grit 	I could be gritting
you could be gritting
she could be gritting
we could be gritting
you could be gritting
they could be gritting	I could have gritted
you could have gritted
she could have gritted
we could have gritted
you could have gritted
they could have gritted	I could have been gritting
you could have been gritting
she could have been gritting
we could have been gritting
you could have been gritting
they could have been gritting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not grit
you could not grit
she could not grit
we could not grit
you could not grit
they could not grit 	I could not be gritting
you could not be gritting
she could not be gritting
we could not be gritting
you could not be gritting
they could not be gritting	I could not have gritted
you could not have gritted
she could not have gritted
we could not have gritted
you could not have gritted
they could not have gritted	I could not have been gritting
you could not have been gritting
she could not have been gritting
we could not have been gritting
you could not have been gritting
they could not have been gritting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I grit?
could you grit?
could she grit?
could we grit?
could you grit?
could they grit? 	could I be gritting?
could you be gritting?
could she be gritting?
could we be gritting?
could you be gritting?
could they be gritting? 	could I have gritted?
could you have gritted?
could she have gritted?
could we have gritted?
could you have gritted?
could they have gritted? 	could I have been gritting?
could you have been gritting?
could she have been gritting?
could we have been gritting?
could you have been gritting?
could they have been gritting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not grit?
could you not grit?
could she not grit?
could we not grit?
could you not grit?
could they not grit? 	could I not be gritting?
could you not be gritting?
could she not be gritting?
could we not be gritting?
could you not be gritting?
could they not be gritting? 	could I not have gritted?
could you not have gritted?
could she not have gritted?
could we not have gritted?
could you not have gritted?
could they not have gritted? 	could I not have been gritting?
could you not have been gritting?
could she not have been gritting?
could we not have been gritting?
could you not have been gritting?
could they not have been gritting?