must plan
Verbo regular: plan - planned- planned

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must plan
you must plan
he must plan
we must plan
you must plan
they must plan 	I must be planning
you must be planning
he must be planning
we must be planning
you must be planning
they must be planning	I must have planned
you must have planned
he 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
he must have been planning
we must have been planning
you must have been planning
they must have been planning	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't plan
you mustn't plan
he mustn't plan
we mustn't plan
you mustn't plan
they mustn't plan 	I mustn't be planning
you mustn't be planning
he mustn't be planning
we mustn't be planning
you mustn't be planning
they mustn't be planning	I mustn't have planned
you mustn't have planned
he mustn't have planned
we mustn't have planned
you mustn't have planned
they mustn't have planned	I mustn't have been planning
you mustn't have been planning
he mustn't have been planning
we mustn't have been planning
you mustn't have been planning
they mustn't have been planning	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I plan?
must you plan?
must he plan?
must we plan?
must you plan?
must they plan? 	must I be planning?
must you be planning?
must he be planning?
must we be planning?
must you be planning?
must they be planning? 	must I have planned?
must you have planned?
must he 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 he have been planning?
must we have been planning?
must you have been planning?
must they have been planning? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I plan?
mustn't you plan?
mustn't he plan?
mustn't we plan?
mustn't you plan?
mustn't they plan? 	mustn't I be planning?
mustn't you be planning?
mustn't he be planning?
mustn't we be planning?
mustn't you be planning?
mustn't they be planning? 	mustn't I have planned?
mustn't you have planned?
mustn't he have planned?
mustn't we have planned?
mustn't you have planned?
mustn't they have planned? 	mustn't I have been planning?
mustn't you have been planning?
mustn't he have been planning?
mustn't we have been planning?
mustn't you have been planning?
mustn't they have been planning?