can underuse
Verbo regolare: underuse - underused- underused

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I can underuse
you can underuse
he can underuse
we can underuse
you can underuse
they can underuse 	I can be underusing
you can be underusing
he can be underusing
we can be underusing
you can be underusing
they can be underusing	I can have underused
you can have underused
he 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
he can have been underusing
we can have been underusing
you can have been underusing
they can have been underusing	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I can't underuse
you can't underuse
he 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
he 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
he 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
he can't have been underusing
we can't have been underusing
you can't have been underusing
they can't have been underusing	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can I underuse?
can you underuse?
can he underuse?
can we underuse?
can you underuse?
can they underuse? 	can I be underusing?
can you be underusing?
can he be underusing?
can we be underusing?
can you be underusing?
can they be underusing? 	can I have underused?
can you have underused?
can he 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 he have been underusing?
can we have been underusing?
can you have been underusing?
can they have been underusing? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can't I underuse?
can't you underuse?
can't he 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 he 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 he 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 he have been underusing?
can't we have been underusing?
can't you have been underusing?
can't they have been underusing?