must perk perk
Regular verb: perk perk - perk perked- perk perked

, this verb may not exist. Conjugation is given as example.

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must perk perk
you must perk perk
he must perk perk
we must perk perk
you must perk perk
they must perk perk 	I must be perk perking
you must be perk perking
he must be perk perking
we must be perk perking
you must be perk perking
they must be perk perking	I must have perk perked
you must have perk perked
he must have perk perked
we must have perk perked
you must have perk perked
they must have perk perked	I must have been perk perking
you must have been perk perking
he must have been perk perking
we must have been perk perking
you must have been perk perking
they must have been perk perking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not perk perk
you must not perk perk
he must not perk perk
we must not perk perk
you must not perk perk
they must not perk perk 	I must not be perk perking
you must not be perk perking
he must not be perk perking
we must not be perk perking
you must not be perk perking
they must not be perk perking	I must not have perk perked
you must not have perk perked
he must not have perk perked
we must not have perk perked
you must not have perk perked
they must not have perk perked	I must not have been perk perking
you must not have been perk perking
he must not have been perk perking
we must not have been perk perking
you must not have been perk perking
they must not have been perk perking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I perk perk?
must you perk perk?
must he perk perk?
must we perk perk?
must you perk perk?
must they perk perk? 	must I be perk perking?
must you be perk perking?
must he be perk perking?
must we be perk perking?
must you be perk perking?
must they be perk perking? 	must I have perk perked?
must you have perk perked?
must he have perk perked?
must we have perk perked?
must you have perk perked?
must they have perk perked? 	must I have been perk perking?
must you have been perk perking?
must he have been perk perking?
must we have been perk perking?
must you have been perk perking?
must they have been perk perking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not perk perk?
must you not perk perk?
must he not perk perk?
must we not perk perk?
must you not perk perk?
must they not perk perk? 	must I not be perk perking?
must you not be perk perking?
must he not be perk perking?
must we not be perk perking?
must you not be perk perking?
must they not be perk perking? 	must I not have perk perked?
must you not have perk perked?
must he not have perk perked?
must we not have perk perked?
must you not have perk perked?
must they not have perk perked? 	must I not have been perk perking?
must you not have been perk perking?
must he not have been perk perking?
must we not have been perk perking?
must you not have been perk perking?
must they not have been perk perking?