could exhibit
Verbo regular: exhibit - exhibited- exhibited

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could exhibit
you could exhibit
he could exhibit
we could exhibit
you could exhibit
they could exhibit 	I could be exhibiting
you could be exhibiting
he could be exhibiting
we could be exhibiting
you could be exhibiting
they could be exhibiting	I could have exhibited
you could have exhibited
he could have exhibited
we could have exhibited
you could have exhibited
they could have exhibited	I could have been exhibiting
you could have been exhibiting
he could have been exhibiting
we could have been exhibiting
you could have been exhibiting
they could have been exhibiting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't exhibit
you couldn't exhibit
he couldn't exhibit
we couldn't exhibit
you couldn't exhibit
they couldn't exhibit 	I couldn't be exhibiting
you couldn't be exhibiting
he couldn't be exhibiting
we couldn't be exhibiting
you couldn't be exhibiting
they couldn't be exhibiting	I couldn't have exhibited
you couldn't have exhibited
he couldn't have exhibited
we couldn't have exhibited
you couldn't have exhibited
they couldn't have exhibited	I couldn't have been exhibiting
you couldn't have been exhibiting
he couldn't have been exhibiting
we couldn't have been exhibiting
you couldn't have been exhibiting
they couldn't have been exhibiting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I exhibit?
could you exhibit?
could he exhibit?
could we exhibit?
could you exhibit?
could they exhibit? 	could I be exhibiting?
could you be exhibiting?
could he be exhibiting?
could we be exhibiting?
could you be exhibiting?
could they be exhibiting? 	could I have exhibited?
could you have exhibited?
could he have exhibited?
could we have exhibited?
could you have exhibited?
could they have exhibited? 	could I have been exhibiting?
could you have been exhibiting?
could he have been exhibiting?
could we have been exhibiting?
could you have been exhibiting?
could they have been exhibiting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I exhibit?
couldn't you exhibit?
couldn't he exhibit?
couldn't we exhibit?
couldn't you exhibit?
couldn't they exhibit? 	couldn't I be exhibiting?
couldn't you be exhibiting?
couldn't he be exhibiting?
couldn't we be exhibiting?
couldn't you be exhibiting?
couldn't they be exhibiting? 	couldn't I have exhibited?
couldn't you have exhibited?
couldn't he have exhibited?
couldn't we have exhibited?
couldn't you have exhibited?
couldn't they have exhibited? 	couldn't I have been exhibiting?
couldn't you have been exhibiting?
couldn't he have been exhibiting?
couldn't we have been exhibiting?
couldn't you have been exhibiting?
couldn't they have been exhibiting?