can placard
Verbo regular: placard - placarded- placarded

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can placard
you can placard
he can placard
we can placard
you can placard
they can placard 	I can be placarding
you can be placarding
he can be placarding
we can be placarding
you can be placarding
they can be placarding	I can have placarded
you can have placarded
he can have placarded
we can have placarded
you can have placarded
they can have placarded	I can have been placarding
you can have been placarding
he can have been placarding
we can have been placarding
you can have been placarding
they can have been placarding	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot placard
you cannot placard
he cannot placard
we cannot placard
you cannot placard
they cannot placard 	I cannot be placarding
you cannot be placarding
he cannot be placarding
we cannot be placarding
you cannot be placarding
they cannot be placarding	I cannot have placarded
you cannot have placarded
he cannot have placarded
we cannot have placarded
you cannot have placarded
they cannot have placarded	I cannot have been placarding
you cannot have been placarding
he cannot have been placarding
we cannot have been placarding
you cannot have been placarding
they cannot have been placarding	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I placard?
can you placard?
can he placard?
can we placard?
can you placard?
can they placard? 	can I be placarding?
can you be placarding?
can he be placarding?
can we be placarding?
can you be placarding?
can they be placarding? 	can I have placarded?
can you have placarded?
can he have placarded?
can we have placarded?
can you have placarded?
can they have placarded? 	can I have been placarding?
can you have been placarding?
can he have been placarding?
can we have been placarding?
can you have been placarding?
can they have been placarding? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not placard?
can you not placard?
can he not placard?
can we not placard?
can you not placard?
can they not placard? 	can I not be placarding?
can you not be placarding?
can he not be placarding?
can we not be placarding?
can you not be placarding?
can they not be placarding? 	can I not have placarded?
can you not have placarded?
can he not have placarded?
can we not have placarded?
can you not have placarded?
can they not have placarded? 	can I not have been placarding?
can you not have been placarding?
can he not have been placarding?
can we not have been placarding?
can you not have been placarding?
can they not have been placarding?