could grift
Verbo regular: grift - grifted- grifted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con 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	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't grift
you couldn't grift
he couldn't grift
we couldn't grift
you couldn't grift
they couldn't grift 	I couldn't be grifting
you couldn't be grifting
he couldn't be grifting
we couldn't be grifting
you couldn't be grifting
they couldn't be grifting	I couldn't have grifted
you couldn't have grifted
he couldn't have grifted
we couldn't have grifted
you couldn't have grifted
they couldn't have grifted	I couldn't have been grifting
you couldn't have been grifting
he couldn't have been grifting
we couldn't have been grifting
you couldn't have been grifting
they couldn't have been grifting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con 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-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I grift?
couldn't you grift?
couldn't he grift?
couldn't we grift?
couldn't you grift?
couldn't they grift? 	couldn't I be grifting?
couldn't you be grifting?
couldn't he be grifting?
couldn't we be grifting?
couldn't you be grifting?
couldn't they be grifting? 	couldn't I have grifted?
couldn't you have grifted?
couldn't he have grifted?
couldn't we have grifted?
couldn't you have grifted?
couldn't they have grifted? 	couldn't I have been grifting?
couldn't you have been grifting?
couldn't he have been grifting?
couldn't we have been grifting?
couldn't you have been grifting?
couldn't they have been grifting?