can discuss
Verbo regular: discuss - discussed- discussed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can discuss
you can discuss
he can discuss
we can discuss
you can discuss
they can discuss 	I can be discussing
you can be discussing
he can be discussing
we can be discussing
you can be discussing
they can be discussing	I can have discussed
you can have discussed
he can have discussed
we can have discussed
you can have discussed
they can have discussed	I can have been discussing
you can have been discussing
he can have been discussing
we can have been discussing
you can have been discussing
they can have been discussing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can't discuss
you can't discuss
he can't discuss
we can't discuss
you can't discuss
they can't discuss 	I can't be discussing
you can't be discussing
he can't be discussing
we can't be discussing
you can't be discussing
they can't be discussing	I can't have discussed
you can't have discussed
he can't have discussed
we can't have discussed
you can't have discussed
they can't have discussed	I can't have been discussing
you can't have been discussing
he can't have been discussing
we can't have been discussing
you can't have been discussing
they can't have been discussing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I discuss?
can you discuss?
can he discuss?
can we discuss?
can you discuss?
can they discuss? 	can I be discussing?
can you be discussing?
can he be discussing?
can we be discussing?
can you be discussing?
can they be discussing? 	can I have discussed?
can you have discussed?
can he have discussed?
can we have discussed?
can you have discussed?
can they have discussed? 	can I have been discussing?
can you have been discussing?
can he have been discussing?
can we have been discussing?
can you have been discussing?
can they have been discussing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can't I discuss?
can't you discuss?
can't he discuss?
can't we discuss?
can't you discuss?
can't they discuss? 	can't I be discussing?
can't you be discussing?
can't he be discussing?
can't we be discussing?
can't you be discussing?
can't they be discussing? 	can't I have discussed?
can't you have discussed?
can't he have discussed?
can't we have discussed?
can't you have discussed?
can't they have discussed? 	can't I have been discussing?
can't you have been discussing?
can't he have been discussing?
can't we have been discussing?
can't you have been discussing?
can't they have been discussing?