will back
Verbo regular: back - backed- backed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I'll back
you'll back
he'll back
we'll back
you'll back
they'll back 	I'll be backing
you'll be backing
he'll be backing
we'll be backing
you'll be backing
they'll be backing	I'll have backed
you'll have backed
he'll have backed
we'll have backed
you'll have backed
they'll have backed	I'll have been backing
you'll have been backing
he'll have been backing
we'll have been backing
you'll have been backing
they'll have been backing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I won't back
you won't back
he won't back
we won't back
you won't back
they won't back 	I won't be backing
you won't be backing
he won't be backing
we won't be backing
you won't be backing
they won't be backing	I won't have backed
you won't have backed
he won't have backed
we won't have backed
you won't have backed
they won't have backed	I won't have been backing
you won't have been backing
he won't have been backing
we won't have been backing
you won't have been backing
they won't have been backing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
will I back?
will you back?
will he back?
will we back?
will you back?
will they back? 	will I be backing?
will you be backing?
will he be backing?
will we be backing?
will you be backing?
will they be backing? 	will I have backed?
will you have backed?
will he have backed?
will we have backed?
will you have backed?
will they have backed? 	will I have been backing?
will you have been backing?
will he have been backing?
will we have been backing?
will you have been backing?
will they have been backing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
won't I back?
won't you back?
won't he back?
won't we back?
won't you back?
won't they back? 	won't I be backing?
won't you be backing?
won't he be backing?
won't we be backing?
won't you be backing?
won't they be backing? 	won't I have backed?
won't you have backed?
won't he have backed?
won't we have backed?
won't you have backed?
won't they have backed? 	won't I have been backing?
won't you have been backing?
won't he have been backing?
won't we have been backing?
won't you have been backing?
won't they have been backing?