can unshift
Verbo regular: unshift - unshifted- unshifted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can unshift
you can unshift
she can unshift
we can unshift
you can unshift
they can unshift 	I can be unshifting
you can be unshifting
she can be unshifting
we can be unshifting
you can be unshifting
they can be unshifting	I can have unshifted
you can have unshifted
she can have unshifted
we can have unshifted
you can have unshifted
they can have unshifted	I can have been unshifting
you can have been unshifting
she can have been unshifting
we can have been unshifting
you can have been unshifting
they can have been unshifting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot unshift
you cannot unshift
she cannot unshift
we cannot unshift
you cannot unshift
they cannot unshift 	I cannot be unshifting
you cannot be unshifting
she cannot be unshifting
we cannot be unshifting
you cannot be unshifting
they cannot be unshifting	I cannot have unshifted
you cannot have unshifted
she cannot have unshifted
we cannot have unshifted
you cannot have unshifted
they cannot have unshifted	I cannot have been unshifting
you cannot have been unshifting
she cannot have been unshifting
we cannot have been unshifting
you cannot have been unshifting
they cannot have been unshifting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I unshift?
can you unshift?
can she unshift?
can we unshift?
can you unshift?
can they unshift? 	can I be unshifting?
can you be unshifting?
can she be unshifting?
can we be unshifting?
can you be unshifting?
can they be unshifting? 	can I have unshifted?
can you have unshifted?
can she have unshifted?
can we have unshifted?
can you have unshifted?
can they have unshifted? 	can I have been unshifting?
can you have been unshifting?
can she have been unshifting?
can we have been unshifting?
can you have been unshifting?
can they have been unshifting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not unshift?
can you not unshift?
can she not unshift?
can we not unshift?
can you not unshift?
can they not unshift? 	can I not be unshifting?
can you not be unshifting?
can she not be unshifting?
can we not be unshifting?
can you not be unshifting?
can they not be unshifting? 	can I not have unshifted?
can you not have unshifted?
can she not have unshifted?
can we not have unshifted?
can you not have unshifted?
can they not have unshifted? 	can I not have been unshifting?
can you not have been unshifting?
can she not have been unshifting?
can we not have been unshifting?
can you not have been unshifting?
can they not have been unshifting?