can untack
Verbo regular: untack - untacked- untacked

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can untack
you can untack
he can untack
we can untack
you can untack
they can untack 	I can be untacking
you can be untacking
he can be untacking
we can be untacking
you can be untacking
they can be untacking	I can have untacked
you can have untacked
he can have untacked
we can have untacked
you can have untacked
they can have untacked	I can have been untacking
you can have been untacking
he can have been untacking
we can have been untacking
you can have been untacking
they can have been untacking	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can't untack
you can't untack
he can't untack
we can't untack
you can't untack
they can't untack 	I can't be untacking
you can't be untacking
he can't be untacking
we can't be untacking
you can't be untacking
they can't be untacking	I can't have untacked
you can't have untacked
he can't have untacked
we can't have untacked
you can't have untacked
they can't have untacked	I can't have been untacking
you can't have been untacking
he can't have been untacking
we can't have been untacking
you can't have been untacking
they can't have been untacking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I untack?
can you untack?
can he untack?
can we untack?
can you untack?
can they untack? 	can I be untacking?
can you be untacking?
can he be untacking?
can we be untacking?
can you be untacking?
can they be untacking? 	can I have untacked?
can you have untacked?
can he have untacked?
can we have untacked?
can you have untacked?
can they have untacked? 	can I have been untacking?
can you have been untacking?
can he have been untacking?
can we have been untacking?
can you have been untacking?
can they have been untacking? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can't I untack?
can't you untack?
can't he untack?
can't we untack?
can't you untack?
can't they untack? 	can't I be untacking?
can't you be untacking?
can't he be untacking?
can't we be untacking?
can't you be untacking?
can't they be untacking? 	can't I have untacked?
can't you have untacked?
can't he have untacked?
can't we have untacked?
can't you have untacked?
can't they have untacked? 	can't I have been untacking?
can't you have been untacking?
can't he have been untacking?
can't we have been untacking?
can't you have been untacking?
can't they have been untacking?