must avouch
Regular verb: avouch - avouched- avouched

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must avouch
you must avouch
he must avouch
we must avouch
you must avouch
they must avouch 	I must be avouching
you must be avouching
he must be avouching
we must be avouching
you must be avouching
they must be avouching	I must have avouched
you must have avouched
he must have avouched
we must have avouched
you must have avouched
they must have avouched	I must have been avouching
you must have been avouching
he must have been avouching
we must have been avouching
you must have been avouching
they must have been avouching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not avouch
you must not avouch
he must not avouch
we must not avouch
you must not avouch
they must not avouch 	I must not be avouching
you must not be avouching
he must not be avouching
we must not be avouching
you must not be avouching
they must not be avouching	I must not have avouched
you must not have avouched
he must not have avouched
we must not have avouched
you must not have avouched
they must not have avouched	I must not have been avouching
you must not have been avouching
he must not have been avouching
we must not have been avouching
you must not have been avouching
they must not have been avouching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I avouch?
must you avouch?
must he avouch?
must we avouch?
must you avouch?
must they avouch? 	must I be avouching?
must you be avouching?
must he be avouching?
must we be avouching?
must you be avouching?
must they be avouching? 	must I have avouched?
must you have avouched?
must he have avouched?
must we have avouched?
must you have avouched?
must they have avouched? 	must I have been avouching?
must you have been avouching?
must he have been avouching?
must we have been avouching?
must you have been avouching?
must they have been avouching? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not avouch?
must you not avouch?
must he not avouch?
must we not avouch?
must you not avouch?
must they not avouch? 	must I not be avouching?
must you not be avouching?
must he not be avouching?
must we not be avouching?
must you not be avouching?
must they not be avouching? 	must I not have avouched?
must you not have avouched?
must he not have avouched?
must we not have avouched?
must you not have avouched?
must they not have avouched? 	must I not have been avouching?
must you not have been avouching?
must he not have been avouching?
must we not have been avouching?
must you not have been avouching?
must they not have been avouching?