must approve
Regular verb: approve - approved- approved

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must approve
you must approve
she must approve
we must approve
you must approve
they must approve 	I must be approving
you must be approving
she must be approving
we must be approving
you must be approving
they must be approving	I must have approved
you must have approved
she must have approved
we must have approved
you must have approved
they must have approved	I must have been approving
you must have been approving
she must have been approving
we must have been approving
you must have been approving
they must have been approving	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not approve
you must not approve
she must not approve
we must not approve
you must not approve
they must not approve 	I must not be approving
you must not be approving
she must not be approving
we must not be approving
you must not be approving
they must not be approving	I must not have approved
you must not have approved
she must not have approved
we must not have approved
you must not have approved
they must not have approved	I must not have been approving
you must not have been approving
she must not have been approving
we must not have been approving
you must not have been approving
they must not have been approving	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I approve?
must you approve?
must she approve?
must we approve?
must you approve?
must they approve? 	must I be approving?
must you be approving?
must she be approving?
must we be approving?
must you be approving?
must they be approving? 	must I have approved?
must you have approved?
must she have approved?
must we have approved?
must you have approved?
must they have approved? 	must I have been approving?
must you have been approving?
must she have been approving?
must we have been approving?
must you have been approving?
must they have been approving? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not approve?
must you not approve?
must she not approve?
must we not approve?
must you not approve?
must they not approve? 	must I not be approving?
must you not be approving?
must she not be approving?
must we not be approving?
must you not be approving?
must they not be approving? 	must I not have approved?
must you not have approved?
must she not have approved?
must we not have approved?
must you not have approved?
must they not have approved? 	must I not have been approving?
must you not have been approving?
must she not have been approving?
must we not have been approving?
must you not have been approving?
must they not have been approving?