could grift
Verbo regular: grift - grifted- grifted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could grift
you could grift
he could grift
we could grift
you could grift
they could grift 	I could be grifting
you could be grifting
he could be grifting
we could be grifting
you could be grifting
they could be grifting	I could have grifted
you could have grifted
he could have grifted
we could have grifted
you could have grifted
they could have grifted	I could have been grifting
you could have been grifting
he could have been grifting
we could have been grifting
you could have been grifting
they could have been grifting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not grift
you could not grift
he could not grift
we could not grift
you could not grift
they could not grift 	I could not be grifting
you could not be grifting
he could not be grifting
we could not be grifting
you could not be grifting
they could not be grifting	I could not have grifted
you could not have grifted
he could not have grifted
we could not have grifted
you could not have grifted
they could not have grifted	I could not have been grifting
you could not have been grifting
he could not have been grifting
we could not have been grifting
you could not have been grifting
they could not have been grifting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I grift?
could you grift?
could he grift?
could we grift?
could you grift?
could they grift? 	could I be grifting?
could you be grifting?
could he be grifting?
could we be grifting?
could you be grifting?
could they be grifting? 	could I have grifted?
could you have grifted?
could he have grifted?
could we have grifted?
could you have grifted?
could they have grifted? 	could I have been grifting?
could you have been grifting?
could he have been grifting?
could we have been grifting?
could you have been grifting?
could they have been grifting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not grift?
could you not grift?
could he not grift?
could we not grift?
could you not grift?
could they not grift? 	could I not be grifting?
could you not be grifting?
could he not be grifting?
could we not be grifting?
could you not be grifting?
could they not be grifting? 	could I not have grifted?
could you not have grifted?
could he not have grifted?
could we not have grifted?
could you not have grifted?
could they not have grifted? 	could I not have been grifting?
could you not have been grifting?
could he not have been grifting?
could we not have been grifting?
could you not have been grifting?
could they not have been grifting?