can backpack
Verbo regular: backpack - backpacked- backpacked

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can backpack
you can backpack
he can backpack
we can backpack
you can backpack
they can backpack 	I can be backpacking
you can be backpacking
he can be backpacking
we can be backpacking
you can be backpacking
they can be backpacking	I can have backpacked
you can have backpacked
he can have backpacked
we can have backpacked
you can have backpacked
they can have backpacked	I can have been backpacking
you can have been backpacking
he can have been backpacking
we can have been backpacking
you can have been backpacking
they can have been backpacking	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can't backpack
you can't backpack
he can't backpack
we can't backpack
you can't backpack
they can't backpack 	I can't be backpacking
you can't be backpacking
he can't be backpacking
we can't be backpacking
you can't be backpacking
they can't be backpacking	I can't have backpacked
you can't have backpacked
he can't have backpacked
we can't have backpacked
you can't have backpacked
they can't have backpacked	I can't have been backpacking
you can't have been backpacking
he can't have been backpacking
we can't have been backpacking
you can't have been backpacking
they can't have been backpacking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I backpack?
can you backpack?
can he backpack?
can we backpack?
can you backpack?
can they backpack? 	can I be backpacking?
can you be backpacking?
can he be backpacking?
can we be backpacking?
can you be backpacking?
can they be backpacking? 	can I have backpacked?
can you have backpacked?
can he have backpacked?
can we have backpacked?
can you have backpacked?
can they have backpacked? 	can I have been backpacking?
can you have been backpacking?
can he have been backpacking?
can we have been backpacking?
can you have been backpacking?
can they have been backpacking? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can't I backpack?
can't you backpack?
can't he backpack?
can't we backpack?
can't you backpack?
can't they backpack? 	can't I be backpacking?
can't you be backpacking?
can't he be backpacking?
can't we be backpacking?
can't you be backpacking?
can't they be backpacking? 	can't I have backpacked?
can't you have backpacked?
can't he have backpacked?
can't we have backpacked?
can't you have backpacked?
can't they have backpacked? 	can't I have been backpacking?
can't you have been backpacking?
can't he have been backpacking?
can't we have been backpacking?
can't you have been backpacking?
can't they have been backpacking?