could turf
Verbo regular: turf - turfed- turfed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could turf
you could turf
she could turf
we could turf
you could turf
they could turf 	I could be turfing
you could be turfing
she could be turfing
we could be turfing
you could be turfing
they could be turfing	I could have turfed
you could have turfed
she could have turfed
we could have turfed
you could have turfed
they could have turfed	I could have been turfing
you could have been turfing
she could have been turfing
we could have been turfing
you could have been turfing
they could have been turfing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not turf
you could not turf
she could not turf
we could not turf
you could not turf
they could not turf 	I could not be turfing
you could not be turfing
she could not be turfing
we could not be turfing
you could not be turfing
they could not be turfing	I could not have turfed
you could not have turfed
she could not have turfed
we could not have turfed
you could not have turfed
they could not have turfed	I could not have been turfing
you could not have been turfing
she could not have been turfing
we could not have been turfing
you could not have been turfing
they could not have been turfing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I turf?
could you turf?
could she turf?
could we turf?
could you turf?
could they turf? 	could I be turfing?
could you be turfing?
could she be turfing?
could we be turfing?
could you be turfing?
could they be turfing? 	could I have turfed?
could you have turfed?
could she have turfed?
could we have turfed?
could you have turfed?
could they have turfed? 	could I have been turfing?
could you have been turfing?
could she have been turfing?
could we have been turfing?
could you have been turfing?
could they have been turfing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not turf?
could you not turf?
could she not turf?
could we not turf?
could you not turf?
could they not turf? 	could I not be turfing?
could you not be turfing?
could she not be turfing?
could we not be turfing?
could you not be turfing?
could they not be turfing? 	could I not have turfed?
could you not have turfed?
could she not have turfed?
could we not have turfed?
could you not have turfed?
could they not have turfed? 	could I not have been turfing?
could you not have been turfing?
could she not have been turfing?
could we not have been turfing?
could you not have been turfing?
could they not have been turfing?