can underuse
Verbe régulier : underuse - underused- underused
Traduction française : sous-utiliser 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I can underuse
you can underuse
she can underuse
we can underuse
you can underuse
they can underuse 	I can be underusing
you can be underusing
she can be underusing
we can be underusing
you can be underusing
they can be underusing	I can have underused
you can have underused
she can have underused
we can have underused
you can have underused
they can have underused	I can have been underusing
you can have been underusing
she can have been underusing
we can have been underusing
you can have been underusing
they can have been underusing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I can't underuse
you can't underuse
she can't underuse
we can't underuse
you can't underuse
they can't underuse 	I can't be underusing
you can't be underusing
she can't be underusing
we can't be underusing
you can't be underusing
they can't be underusing	I can't have underused
you can't have underused
she can't have underused
we can't have underused
you can't have underused
they can't have underused	I can't have been underusing
you can't have been underusing
she can't have been underusing
we can't have been underusing
you can't have been underusing
they can't have been underusing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can I underuse?
can you underuse?
can she underuse?
can we underuse?
can you underuse?
can they underuse? 	can I be underusing?
can you be underusing?
can she be underusing?
can we be underusing?
can you be underusing?
can they be underusing? 	can I have underused?
can you have underused?
can she have underused?
can we have underused?
can you have underused?
can they have underused? 	can I have been underusing?
can you have been underusing?
can she have been underusing?
can we have been underusing?
can you have been underusing?
can they have been underusing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can't I underuse?
can't you underuse?
can't she underuse?
can't we underuse?
can't you underuse?
can't they underuse? 	can't I be underusing?
can't you be underusing?
can't she be underusing?
can't we be underusing?
can't you be underusing?
can't they be underusing? 	can't I have underused?
can't you have underused?
can't she have underused?
can't we have underused?
can't you have underused?
can't they have underused? 	can't I have been underusing?
can't you have been underusing?
can't she have been underusing?
can't we have been underusing?
can't you have been underusing?
can't they have been underusing?