could unstrap
Verbo regular: unstrap - unstrapped- unstrapped

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could unstrap
you could unstrap
she could unstrap
we could unstrap
you could unstrap
they could unstrap 	I could be unstrapping
you could be unstrapping
she could be unstrapping
we could be unstrapping
you could be unstrapping
they could be unstrapping	I could have unstrapped
you could have unstrapped
she could have unstrapped
we could have unstrapped
you could have unstrapped
they could have unstrapped	I could have been unstrapping
you could have been unstrapping
she could have been unstrapping
we could have been unstrapping
you could have been unstrapping
they could have been unstrapping	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't unstrap
you couldn't unstrap
she couldn't unstrap
we couldn't unstrap
you couldn't unstrap
they couldn't unstrap 	I couldn't be unstrapping
you couldn't be unstrapping
she couldn't be unstrapping
we couldn't be unstrapping
you couldn't be unstrapping
they couldn't be unstrapping	I couldn't have unstrapped
you couldn't have unstrapped
she couldn't have unstrapped
we couldn't have unstrapped
you couldn't have unstrapped
they couldn't have unstrapped	I couldn't have been unstrapping
you couldn't have been unstrapping
she couldn't have been unstrapping
we couldn't have been unstrapping
you couldn't have been unstrapping
they couldn't have been unstrapping	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I unstrap?
could you unstrap?
could she unstrap?
could we unstrap?
could you unstrap?
could they unstrap? 	could I be unstrapping?
could you be unstrapping?
could she be unstrapping?
could we be unstrapping?
could you be unstrapping?
could they be unstrapping? 	could I have unstrapped?
could you have unstrapped?
could she have unstrapped?
could we have unstrapped?
could you have unstrapped?
could they have unstrapped? 	could I have been unstrapping?
could you have been unstrapping?
could she have been unstrapping?
could we have been unstrapping?
could you have been unstrapping?
could they have been unstrapping? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I unstrap?
couldn't you unstrap?
couldn't she unstrap?
couldn't we unstrap?
couldn't you unstrap?
couldn't they unstrap? 	couldn't I be unstrapping?
couldn't you be unstrapping?
couldn't she be unstrapping?
couldn't we be unstrapping?
couldn't you be unstrapping?
couldn't they be unstrapping? 	couldn't I have unstrapped?
couldn't you have unstrapped?
couldn't she have unstrapped?
couldn't we have unstrapped?
couldn't you have unstrapped?
couldn't they have unstrapped? 	couldn't I have been unstrapping?
couldn't you have been unstrapping?
couldn't she have been unstrapping?
couldn't we have been unstrapping?
couldn't you have been unstrapping?
couldn't they have been unstrapping?