English verb conjugation
CAN BROWN

Regular verb: brown - browned - browned

Affirmation

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

Negation

Simple form	V-ing form
I can't brown you can't brown he can't brown we can't brown you can't brown they can't brown	I can't be browning you can't be browning he can't be browning we can't be browning you can't be browning they can't be browning
Perfect	V-ing perfect
I can't have browned you can't have browned he can't have browned we can't have browned you can't have browned they can't have browned	I can't have been browning you can't have been browning he can't have been browning we can't have been browning you can't have been browning they can't have been browning

Interrogative form

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

Interro-negative form

Simple form	V-ing form
can't I brown? can't you brown? can't he brown? can't we brown? can't you brown? can't they brown?	can't I be browning? can't you be browning? can't he be browning? can't we be browning? can't you be browning? can't they be browning?
Perfect	V-ing perfect
can't I have browned? can't you have browned? can't he have browned? can't we have browned? can't you have browned? can't they have browned?	can't I have been browning? can't you have been browning? can't he have been browning? can't we have been browning? can't you have been browning? can't they have been browning?