could plan
Verbo regular: plan - planned- planned

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

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not plan
you could not plan
she could not plan
we could not plan
you could not plan
they could not plan 	I could not be planning
you could not be planning
she could not be planning
we could not be planning
you could not be planning
they could not be planning	I could not have planned
you could not have planned
she could not have planned
we could not have planned
you could not have planned
they could not have planned	I could not have been planning
you could not have been planning
she could not have been planning
we could not have been planning
you could not have been planning
they could not have been planning	

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

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not plan?
could you not plan?
could she not plan?
could we not plan?
could you not plan?
could they not plan? 	could I not be planning?
could you not be planning?
could she not be planning?
could we not be planning?
could you not be planning?
could they not be planning? 	could I not have planned?
could you not have planned?
could she not have planned?
could we not have planned?
could you not have planned?
could they not have planned? 	could I not have been planning?
could you not have been planning?
could she not have been planning?
could we not have been planning?
could you not have been planning?
could they not have been planning?