must initial
Regular verb: initial - initialed- initialed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must initial
you must initial
he must initial
we must initial
you must initial
they must initial 	I must be initialing
you must be initialing
he must be initialing
we must be initialing
you must be initialing
they must be initialing	I must have initialed
you must have initialed
he must have initialed
we must have initialed
you must have initialed
they must have initialed	I must have been initialing
you must have been initialing
he must have been initialing
we must have been initialing
you must have been initialing
they must have been initialing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not initial
you must not initial
he must not initial
we must not initial
you must not initial
they must not initial 	I must not be initialing
you must not be initialing
he must not be initialing
we must not be initialing
you must not be initialing
they must not be initialing	I must not have initialed
you must not have initialed
he must not have initialed
we must not have initialed
you must not have initialed
they must not have initialed	I must not have been initialing
you must not have been initialing
he must not have been initialing
we must not have been initialing
you must not have been initialing
they must not have been initialing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I initial?
must you initial?
must he initial?
must we initial?
must you initial?
must they initial? 	must I be initialing?
must you be initialing?
must he be initialing?
must we be initialing?
must you be initialing?
must they be initialing? 	must I have initialed?
must you have initialed?
must he have initialed?
must we have initialed?
must you have initialed?
must they have initialed? 	must I have been initialing?
must you have been initialing?
must he have been initialing?
must we have been initialing?
must you have been initialing?
must they have been initialing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not initial?
must you not initial?
must he not initial?
must we not initial?
must you not initial?
must they not initial? 	must I not be initialing?
must you not be initialing?
must he not be initialing?
must we not be initialing?
must you not be initialing?
must they not be initialing? 	must I not have initialed?
must you not have initialed?
must he not have initialed?
must we not have initialed?
must you not have initialed?
must they not have initialed? 	must I not have been initialing?
must you not have been initialing?
must he not have been initialing?
must we not have been initialing?
must you not have been initialing?
must they not have been initialing?