must plan
Regular verb: plan - planned- planned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must plan
you must plan
she must plan
we must plan
you must plan
they must plan 	I must be planning
you must be planning
she must be planning
we must be planning
you must be planning
they must be planning	I must have planned
you must have planned
she must have planned
we must have planned
you must have planned
they must have planned	I must have been planning
you must have been planning
she must have been planning
we must have been planning
you must have been planning
they must have been planning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not plan
you must not plan
she must not plan
we must not plan
you must not plan
they must not plan 	I must not be planning
you must not be planning
she must not be planning
we must not be planning
you must not be planning
they must not be planning	I must not have planned
you must not have planned
she must not have planned
we must not have planned
you must not have planned
they must not have planned	I must not have been planning
you must not have been planning
she must not have been planning
we must not have been planning
you must not have been planning
they must not have been planning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I plan?
must you plan?
must she plan?
must we plan?
must you plan?
must they plan? 	must I be planning?
must you be planning?
must she be planning?
must we be planning?
must you be planning?
must they be planning? 	must I have planned?
must you have planned?
must she have planned?
must we have planned?
must you have planned?
must they have planned? 	must I have been planning?
must you have been planning?
must she have been planning?
must we have been planning?
must you have been planning?
must they have been planning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not plan?
must you not plan?
must she not plan?
must we not plan?
must you not plan?
must they not plan? 	must I not be planning?
must you not be planning?
must she not be planning?
must we not be planning?
must you not be planning?
must they not be planning? 	must I not have planned?
must you not have planned?
must she not have planned?
must we not have planned?
must you not have planned?
must they not have planned? 	must I not have been planning?
must you not have been planning?
must she not have been planning?
must we not have been planning?
must you not have been planning?
must they not have been planning?