can plan
Regular verb: plan - planned- planned

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot plan
you cannot plan
he cannot plan
we cannot plan
you cannot plan
they cannot plan 	I cannot be planning
you cannot be planning
he cannot be planning
we cannot be planning
you cannot be planning
they cannot be planning	I cannot have planned
you cannot have planned
he cannot have planned
we cannot have planned
you cannot have planned
they cannot have planned	I cannot have been planning
you cannot have been planning
he cannot have been planning
we cannot have been planning
you cannot have been planning
they cannot have been planning	

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

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