must deface
Regular verb: deface - defaced- defaced

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must deface
you must deface
he must deface
we must deface
you must deface
they must deface 	I must be defacing
you must be defacing
he must be defacing
we must be defacing
you must be defacing
they must be defacing	I must have defaced
you must have defaced
he must have defaced
we must have defaced
you must have defaced
they must have defaced	I must have been defacing
you must have been defacing
he must have been defacing
we must have been defacing
you must have been defacing
they must have been defacing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not deface
you must not deface
he must not deface
we must not deface
you must not deface
they must not deface 	I must not be defacing
you must not be defacing
he must not be defacing
we must not be defacing
you must not be defacing
they must not be defacing	I must not have defaced
you must not have defaced
he must not have defaced
we must not have defaced
you must not have defaced
they must not have defaced	I must not have been defacing
you must not have been defacing
he must not have been defacing
we must not have been defacing
you must not have been defacing
they must not have been defacing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I deface?
must you deface?
must he deface?
must we deface?
must you deface?
must they deface? 	must I be defacing?
must you be defacing?
must he be defacing?
must we be defacing?
must you be defacing?
must they be defacing? 	must I have defaced?
must you have defaced?
must he have defaced?
must we have defaced?
must you have defaced?
must they have defaced? 	must I have been defacing?
must you have been defacing?
must he have been defacing?
must we have been defacing?
must you have been defacing?
must they have been defacing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not deface?
must you not deface?
must he not deface?
must we not deface?
must you not deface?
must they not deface? 	must I not be defacing?
must you not be defacing?
must he not be defacing?
must we not be defacing?
must you not be defacing?
must they not be defacing? 	must I not have defaced?
must you not have defaced?
must he not have defaced?
must we not have defaced?
must you not have defaced?
must they not have defaced? 	must I not have been defacing?
must you not have been defacing?
must he not have been defacing?
must we not have been defacing?
must you not have been defacing?
must they not have been defacing?