could brown
Regular verb: brown - browned- browned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could brown
you could brown
he could brown
we could brown
you could brown
they could brown 	I could be browning
you could be browning
he could be browning
we could be browning
you could be browning
they could be browning	I could have browned
you could have browned
he could have browned
we could have browned
you could have browned
they could have browned	I could have been browning
you could have been browning
he could have been browning
we could have been browning
you could have been browning
they could have been browning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not brown
you could not brown
he could not brown
we could not brown
you could not brown
they could not brown 	I could not be browning
you could not be browning
he could not be browning
we could not be browning
you could not be browning
they could not be browning	I could not have browned
you could not have browned
he could not have browned
we could not have browned
you could not have browned
they could not have browned	I could not have been browning
you could not have been browning
he could not have been browning
we could not have been browning
you could not have been browning
they could not have been browning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I brown?
could you brown?
could he brown?
could we brown?
could you brown?
could they brown? 	could I be browning?
could you be browning?
could he be browning?
could we be browning?
could you be browning?
could they be browning? 	could I have browned?
could you have browned?
could he have browned?
could we have browned?
could you have browned?
could they have browned? 	could I have been browning?
could you have been browning?
could he have been browning?
could we have been browning?
could you have been browning?
could they have been browning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not brown?
could you not brown?
could he not brown?
could we not brown?
could you not brown?
could they not brown? 	could I not be browning?
could you not be browning?
could he not be browning?
could we not be browning?
could you not be browning?
could they not be browning? 	could I not have browned?
could you not have browned?
could he not have browned?
could we not have browned?
could you not have browned?
could they not have browned? 	could I not have been browning?
could you not have been browning?
could he not have been browning?
could we not have been browning?
could you not have been browning?
could they not have been browning?