may volunteer
Verbo regular: volunteer - volunteered- volunteered

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

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may not volunteer
you may not volunteer
she may not volunteer
we may not volunteer
you may not volunteer
they may not volunteer 	I may not be volunteering
you may not be volunteering
she may not be volunteering
we may not be volunteering
you may not be volunteering
they may not be volunteering	I may not have volunteered
you may not have volunteered
she may not have volunteered
we may not have volunteered
you may not have volunteered
they may not have volunteered	I may not have been volunteering
you may not have been volunteering
she may not have been volunteering
we may not have been volunteering
you may not have been volunteering
they may not have been volunteering	

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

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I not volunteer?
may you not volunteer?
may she not volunteer?
may we not volunteer?
may you not volunteer?
may they not volunteer? 	may I not be volunteering?
may you not be volunteering?
may she not be volunteering?
may we not be volunteering?
may you not be volunteering?
may they not be volunteering? 	may I not have volunteered?
may you not have volunteered?
may she not have volunteered?
may we not have volunteered?
may you not have volunteered?
may they not have volunteered? 	may I not have been volunteering?
may you not have been volunteering?
may she not have been volunteering?
may we not have been volunteering?
may you not have been volunteering?
may they not have been volunteering?