must write-protect
Regular verb: write-protect - write-protected- write-protected

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must write-protect
you must write-protect
he must write-protect
we must write-protect
you must write-protect
they must write-protect 	I must be write-protecting
you must be write-protecting
he must be write-protecting
we must be write-protecting
you must be write-protecting
they must be write-protecting	I must have write-protected
you must have write-protected
he must have write-protected
we must have write-protected
you must have write-protected
they must have write-protected	I must have been write-protecting
you must have been write-protecting
he must have been write-protecting
we must have been write-protecting
you must have been write-protecting
they must have been write-protecting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not write-protect
you must not write-protect
he must not write-protect
we must not write-protect
you must not write-protect
they must not write-protect 	I must not be write-protecting
you must not be write-protecting
he must not be write-protecting
we must not be write-protecting
you must not be write-protecting
they must not be write-protecting	I must not have write-protected
you must not have write-protected
he must not have write-protected
we must not have write-protected
you must not have write-protected
they must not have write-protected	I must not have been write-protecting
you must not have been write-protecting
he must not have been write-protecting
we must not have been write-protecting
you must not have been write-protecting
they must not have been write-protecting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I write-protect?
must you write-protect?
must he write-protect?
must we write-protect?
must you write-protect?
must they write-protect? 	must I be write-protecting?
must you be write-protecting?
must he be write-protecting?
must we be write-protecting?
must you be write-protecting?
must they be write-protecting? 	must I have write-protected?
must you have write-protected?
must he have write-protected?
must we have write-protected?
must you have write-protected?
must they have write-protected? 	must I have been write-protecting?
must you have been write-protecting?
must he have been write-protecting?
must we have been write-protecting?
must you have been write-protecting?
must they have been write-protecting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not write-protect?
must you not write-protect?
must he not write-protect?
must we not write-protect?
must you not write-protect?
must they not write-protect? 	must I not be write-protecting?
must you not be write-protecting?
must he not be write-protecting?
must we not be write-protecting?
must you not be write-protecting?
must they not be write-protecting? 	must I not have write-protected?
must you not have write-protected?
must he not have write-protected?
must we not have write-protected?
must you not have write-protected?
must they not have write-protected? 	must I not have been write-protecting?
must you not have been write-protecting?
must he not have been write-protecting?
must we not have been write-protecting?
must you not have been write-protecting?
must they not have been write-protecting?