must argue
Regular verb: argue - argued- argued

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must argue
you must argue
he must argue
we must argue
you must argue
they must argue 	I must be arguing
you must be arguing
he must be arguing
we must be arguing
you must be arguing
they must be arguing	I must have argued
you must have argued
he must have argued
we must have argued
you must have argued
they must have argued	I must have been arguing
you must have been arguing
he must have been arguing
we must have been arguing
you must have been arguing
they must have been arguing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not argue
you must not argue
he must not argue
we must not argue
you must not argue
they must not argue 	I must not be arguing
you must not be arguing
he must not be arguing
we must not be arguing
you must not be arguing
they must not be arguing	I must not have argued
you must not have argued
he must not have argued
we must not have argued
you must not have argued
they must not have argued	I must not have been arguing
you must not have been arguing
he must not have been arguing
we must not have been arguing
you must not have been arguing
they must not have been arguing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I argue?
must you argue?
must he argue?
must we argue?
must you argue?
must they argue? 	must I be arguing?
must you be arguing?
must he be arguing?
must we be arguing?
must you be arguing?
must they be arguing? 	must I have argued?
must you have argued?
must he have argued?
must we have argued?
must you have argued?
must they have argued? 	must I have been arguing?
must you have been arguing?
must he have been arguing?
must we have been arguing?
must you have been arguing?
must they have been arguing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not argue?
must you not argue?
must he not argue?
must we not argue?
must you not argue?
must they not argue? 	must I not be arguing?
must you not be arguing?
must he not be arguing?
must we not be arguing?
must you not be arguing?
must they not be arguing? 	must I not have argued?
must you not have argued?
must he not have argued?
must we not have argued?
must you not have argued?
must they not have argued? 	must I not have been arguing?
must you not have been arguing?
must he not have been arguing?
must we not have been arguing?
must you not have been arguing?
must they not have been arguing?