could supererogate
Verbo regular: supererogate - supererogated- supererogated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could supererogate
you could supererogate
he could supererogate
we could supererogate
you could supererogate
they could supererogate 	I could be supererogating
you could be supererogating
he could be supererogating
we could be supererogating
you could be supererogating
they could be supererogating	I could have supererogated
you could have supererogated
he could have supererogated
we could have supererogated
you could have supererogated
they could have supererogated	I could have been supererogating
you could have been supererogating
he could have been supererogating
we could have been supererogating
you could have been supererogating
they could have been supererogating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not supererogate
you could not supererogate
he could not supererogate
we could not supererogate
you could not supererogate
they could not supererogate 	I could not be supererogating
you could not be supererogating
he could not be supererogating
we could not be supererogating
you could not be supererogating
they could not be supererogating	I could not have supererogated
you could not have supererogated
he could not have supererogated
we could not have supererogated
you could not have supererogated
they could not have supererogated	I could not have been supererogating
you could not have been supererogating
he could not have been supererogating
we could not have been supererogating
you could not have been supererogating
they could not have been supererogating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I supererogate?
could you supererogate?
could he supererogate?
could we supererogate?
could you supererogate?
could they supererogate? 	could I be supererogating?
could you be supererogating?
could he be supererogating?
could we be supererogating?
could you be supererogating?
could they be supererogating? 	could I have supererogated?
could you have supererogated?
could he have supererogated?
could we have supererogated?
could you have supererogated?
could they have supererogated? 	could I have been supererogating?
could you have been supererogating?
could he have been supererogating?
could we have been supererogating?
could you have been supererogating?
could they have been supererogating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not supererogate?
could you not supererogate?
could he not supererogate?
could we not supererogate?
could you not supererogate?
could they not supererogate? 	could I not be supererogating?
could you not be supererogating?
could he not be supererogating?
could we not be supererogating?
could you not be supererogating?
could they not be supererogating? 	could I not have supererogated?
could you not have supererogated?
could he not have supererogated?
could we not have supererogated?
could you not have supererogated?
could they not have supererogated? 	could I not have been supererogating?
could you not have been supererogating?
could he not have been supererogating?
could we not have been supererogating?
could you not have been supererogating?
could they not have been supererogating?