could brown
Regular verb: brown - browned- browned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could brown
you could brown
she could brown
we could brown
you could brown
they could brown 	I could be browning
you could be browning
she could be browning
we could be browning
you could be browning
they could be browning	I could have browned
you could have browned
she 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
she 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 couldn't brown
you couldn't brown
she couldn't brown
we couldn't brown
you couldn't brown
they couldn't brown 	I couldn't be browning
you couldn't be browning
she couldn't be browning
we couldn't be browning
you couldn't be browning
they couldn't be browning	I couldn't have browned
you couldn't have browned
she couldn't have browned
we couldn't have browned
you couldn't have browned
they couldn't have browned	I couldn't have been browning
you couldn't have been browning
she couldn't have been browning
we couldn't have been browning
you couldn't have been browning
they couldn't have been browning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I brown?
could you brown?
could she brown?
could we brown?
could you brown?
could they brown? 	could I be browning?
could you be browning?
could she be browning?
could we be browning?
could you be browning?
could they be browning? 	could I have browned?
could you have browned?
could she 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 she 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 	
couldn't I brown?
couldn't you brown?
couldn't she brown?
couldn't we brown?
couldn't you brown?
couldn't they brown? 	couldn't I be browning?
couldn't you be browning?
couldn't she be browning?
couldn't we be browning?
couldn't you be browning?
couldn't they be browning? 	couldn't I have browned?
couldn't you have browned?
couldn't she have browned?
couldn't we have browned?
couldn't you have browned?
couldn't they have browned? 	couldn't I have been browning?
couldn't you have been browning?
couldn't she have been browning?
couldn't we have been browning?
couldn't you have been browning?
couldn't they have been browning?