can board
Verbo regular: board - boarded- boarded

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can board
you can board
she can board
we can board
you can board
they can board 	I can be boarding
you can be boarding
she can be boarding
we can be boarding
you can be boarding
they can be boarding	I can have boarded
you can have boarded
she can have boarded
we can have boarded
you can have boarded
they can have boarded	I can have been boarding
you can have been boarding
she can have been boarding
we can have been boarding
you can have been boarding
they can have been boarding	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot board
you cannot board
she cannot board
we cannot board
you cannot board
they cannot board 	I cannot be boarding
you cannot be boarding
she cannot be boarding
we cannot be boarding
you cannot be boarding
they cannot be boarding	I cannot have boarded
you cannot have boarded
she cannot have boarded
we cannot have boarded
you cannot have boarded
they cannot have boarded	I cannot have been boarding
you cannot have been boarding
she cannot have been boarding
we cannot have been boarding
you cannot have been boarding
they cannot have been boarding	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I board?
can you board?
can she board?
can we board?
can you board?
can they board? 	can I be boarding?
can you be boarding?
can she be boarding?
can we be boarding?
can you be boarding?
can they be boarding? 	can I have boarded?
can you have boarded?
can she have boarded?
can we have boarded?
can you have boarded?
can they have boarded? 	can I have been boarding?
can you have been boarding?
can she have been boarding?
can we have been boarding?
can you have been boarding?
can they have been boarding? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not board?
can you not board?
can she not board?
can we not board?
can you not board?
can they not board? 	can I not be boarding?
can you not be boarding?
can she not be boarding?
can we not be boarding?
can you not be boarding?
can they not be boarding? 	can I not have boarded?
can you not have boarded?
can she not have boarded?
can we not have boarded?
can you not have boarded?
can they not have boarded? 	can I not have been boarding?
can you not have been boarding?
can she not have been boarding?
can we not have been boarding?
can you not have been boarding?
can they not have been boarding?