may underuse
Verbo regular: underuse - underused- underused

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may underuse
you may underuse
she may underuse
we may underuse
you may underuse
they may underuse 	I may be underusing
you may be underusing
she may be underusing
we may be underusing
you may be underusing
they may be underusing	I may have underused
you may have underused
she may have underused
we may have underused
you may have underused
they may have underused	I may have been underusing
you may have been underusing
she may have been underusing
we may have been underusing
you may have been underusing
they may have been underusing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may not underuse
you may not underuse
she may not underuse
we may not underuse
you may not underuse
they may not underuse 	I may not be underusing
you may not be underusing
she may not be underusing
we may not be underusing
you may not be underusing
they may not be underusing	I may not have underused
you may not have underused
she may not have underused
we may not have underused
you may not have underused
they may not have underused	I may not have been underusing
you may not have been underusing
she may not have been underusing
we may not have been underusing
you may not have been underusing
they may not have been underusing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I underuse?
may you underuse?
may she underuse?
may we underuse?
may you underuse?
may they underuse? 	may I be underusing?
may you be underusing?
may she be underusing?
may we be underusing?
may you be underusing?
may they be underusing? 	may I have underused?
may you have underused?
may she have underused?
may we have underused?
may you have underused?
may they have underused? 	may I have been underusing?
may you have been underusing?
may she have been underusing?
may we have been underusing?
may you have been underusing?
may they have been underusing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I not underuse?
may you not underuse?
may she not underuse?
may we not underuse?
may you not underuse?
may they not underuse? 	may I not be underusing?
may you not be underusing?
may she not be underusing?
may we not be underusing?
may you not be underusing?
may they not be underusing? 	may I not have underused?
may you not have underused?
may she not have underused?
may we not have underused?
may you not have underused?
may they not have underused? 	may I not have been underusing?
may you not have been underusing?
may she not have been underusing?
may we not have been underusing?
may you not have been underusing?
may they not have been underusing?