must deserve
Regular verb: deserve - deserved- deserved

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must deserve
you must deserve
he must deserve
we must deserve
you must deserve
they must deserve 	I must be deserving
you must be deserving
he must be deserving
we must be deserving
you must be deserving
they must be deserving	I must have deserved
you must have deserved
he must have deserved
we must have deserved
you must have deserved
they must have deserved	I must have been deserving
you must have been deserving
he must have been deserving
we must have been deserving
you must have been deserving
they must have been deserving	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not deserve
you must not deserve
he must not deserve
we must not deserve
you must not deserve
they must not deserve 	I must not be deserving
you must not be deserving
he must not be deserving
we must not be deserving
you must not be deserving
they must not be deserving	I must not have deserved
you must not have deserved
he must not have deserved
we must not have deserved
you must not have deserved
they must not have deserved	I must not have been deserving
you must not have been deserving
he must not have been deserving
we must not have been deserving
you must not have been deserving
they must not have been deserving	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I deserve?
must you deserve?
must he deserve?
must we deserve?
must you deserve?
must they deserve? 	must I be deserving?
must you be deserving?
must he be deserving?
must we be deserving?
must you be deserving?
must they be deserving? 	must I have deserved?
must you have deserved?
must he have deserved?
must we have deserved?
must you have deserved?
must they have deserved? 	must I have been deserving?
must you have been deserving?
must he have been deserving?
must we have been deserving?
must you have been deserving?
must they have been deserving? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not deserve?
must you not deserve?
must he not deserve?
must we not deserve?
must you not deserve?
must they not deserve? 	must I not be deserving?
must you not be deserving?
must he not be deserving?
must we not be deserving?
must you not be deserving?
must they not be deserving? 	must I not have deserved?
must you not have deserved?
must he not have deserved?
must we not have deserved?
must you not have deserved?
must they not have deserved? 	must I not have been deserving?
must you not have been deserving?
must he not have been deserving?
must we not have been deserving?
must you not have been deserving?
must they not have been deserving?