must patch
Regular verb: patch - patched- patched

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must patch
you must patch
he must patch
we must patch
you must patch
they must patch 	I must be patching
you must be patching
he must be patching
we must be patching
you must be patching
they must be patching	I must have patched
you must have patched
he must have patched
we must have patched
you must have patched
they must have patched	I must have been patching
you must have been patching
he must have been patching
we must have been patching
you must have been patching
they must have been patching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not patch
you must not patch
he must not patch
we must not patch
you must not patch
they must not patch 	I must not be patching
you must not be patching
he must not be patching
we must not be patching
you must not be patching
they must not be patching	I must not have patched
you must not have patched
he must not have patched
we must not have patched
you must not have patched
they must not have patched	I must not have been patching
you must not have been patching
he must not have been patching
we must not have been patching
you must not have been patching
they must not have been patching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I patch?
must you patch?
must he patch?
must we patch?
must you patch?
must they patch? 	must I be patching?
must you be patching?
must he be patching?
must we be patching?
must you be patching?
must they be patching? 	must I have patched?
must you have patched?
must he have patched?
must we have patched?
must you have patched?
must they have patched? 	must I have been patching?
must you have been patching?
must he have been patching?
must we have been patching?
must you have been patching?
must they have been patching? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not patch?
must you not patch?
must he not patch?
must we not patch?
must you not patch?
must they not patch? 	must I not be patching?
must you not be patching?
must he not be patching?
must we not be patching?
must you not be patching?
must they not be patching? 	must I not have patched?
must you not have patched?
must he not have patched?
must we not have patched?
must you not have patched?
must they not have patched? 	must I not have been patching?
must you not have been patching?
must he not have been patching?
must we not have been patching?
must you not have been patching?
must they not have been patching?