could rot
Verbo regular: rot - rotted- rotted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could rot
you could rot
she could rot
we could rot
you could rot
they could rot 	I could be rotting
you could be rotting
she could be rotting
we could be rotting
you could be rotting
they could be rotting	I could have rotted
you could have rotted
she could have rotted
we could have rotted
you could have rotted
they could have rotted	I could have been rotting
you could have been rotting
she could have been rotting
we could have been rotting
you could have been rotting
they could have been rotting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not rot
you could not rot
she could not rot
we could not rot
you could not rot
they could not rot 	I could not be rotting
you could not be rotting
she could not be rotting
we could not be rotting
you could not be rotting
they could not be rotting	I could not have rotted
you could not have rotted
she could not have rotted
we could not have rotted
you could not have rotted
they could not have rotted	I could not have been rotting
you could not have been rotting
she could not have been rotting
we could not have been rotting
you could not have been rotting
they could not have been rotting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I rot?
could you rot?
could she rot?
could we rot?
could you rot?
could they rot? 	could I be rotting?
could you be rotting?
could she be rotting?
could we be rotting?
could you be rotting?
could they be rotting? 	could I have rotted?
could you have rotted?
could she have rotted?
could we have rotted?
could you have rotted?
could they have rotted? 	could I have been rotting?
could you have been rotting?
could she have been rotting?
could we have been rotting?
could you have been rotting?
could they have been rotting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not rot?
could you not rot?
could she not rot?
could we not rot?
could you not rot?
could they not rot? 	could I not be rotting?
could you not be rotting?
could she not be rotting?
could we not be rotting?
could you not be rotting?
could they not be rotting? 	could I not have rotted?
could you not have rotted?
could she not have rotted?
could we not have rotted?
could you not have rotted?
could they not have rotted? 	could I not have been rotting?
could you not have been rotting?
could she not have been rotting?
could we not have been rotting?
could you not have been rotting?
could they not have been rotting?