can volunteer
Verbo regular: volunteer - volunteered- volunteered

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can volunteer
you can volunteer
he can volunteer
we can volunteer
you can volunteer
they can volunteer 	I can be volunteering
you can be volunteering
he can be volunteering
we can be volunteering
you can be volunteering
they can be volunteering	I can have volunteered
you can have volunteered
he can have volunteered
we can have volunteered
you can have volunteered
they can have volunteered	I can have been volunteering
you can have been volunteering
he can have been volunteering
we can have been volunteering
you can have been volunteering
they can have been volunteering	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can't volunteer
you can't volunteer
he can't volunteer
we can't volunteer
you can't volunteer
they can't volunteer 	I can't be volunteering
you can't be volunteering
he can't be volunteering
we can't be volunteering
you can't be volunteering
they can't be volunteering	I can't have volunteered
you can't have volunteered
he can't have volunteered
we can't have volunteered
you can't have volunteered
they can't have volunteered	I can't have been volunteering
you can't have been volunteering
he can't have been volunteering
we can't have been volunteering
you can't have been volunteering
they can't have been volunteering	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I volunteer?
can you volunteer?
can he volunteer?
can we volunteer?
can you volunteer?
can they volunteer? 	can I be volunteering?
can you be volunteering?
can he be volunteering?
can we be volunteering?
can you be volunteering?
can they be volunteering? 	can I have volunteered?
can you have volunteered?
can he have volunteered?
can we have volunteered?
can you have volunteered?
can they have volunteered? 	can I have been volunteering?
can you have been volunteering?
can he have been volunteering?
can we have been volunteering?
can you have been volunteering?
can they have been volunteering? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can't I volunteer?
can't you volunteer?
can't he volunteer?
can't we volunteer?
can't you volunteer?
can't they volunteer? 	can't I be volunteering?
can't you be volunteering?
can't he be volunteering?
can't we be volunteering?
can't you be volunteering?
can't they be volunteering? 	can't I have volunteered?
can't you have volunteered?
can't he have volunteered?
can't we have volunteered?
can't you have volunteered?
can't they have volunteered? 	can't I have been volunteering?
can't you have been volunteering?
can't he have been volunteering?
can't we have been volunteering?
can't you have been volunteering?
can't they have been volunteering?