English verb conjugation
COULD BREVET

Regular verb: brevet - breveted - breveted

Affirmation

Simple form	V-ing form
I could brevet you could brevet she could brevet we could brevet you could brevet they could brevet	I could be breveting you could be breveting she could be breveting we could be breveting you could be breveting they could be breveting
Perfect	V-ing perfect
I could have breveted you could have breveted she could have breveted we could have breveted you could have breveted they could have breveted	I could have been breveting you could have been breveting she could have been breveting we could have been breveting you could have been breveting they could have been breveting

Negation

Simple form	V-ing form
I couldn't brevet you couldn't brevet she couldn't brevet we couldn't brevet you couldn't brevet they couldn't brevet	I couldn't be breveting you couldn't be breveting she couldn't be breveting we couldn't be breveting you couldn't be breveting they couldn't be breveting
Perfect	V-ing perfect
I couldn't have breveted you couldn't have breveted she couldn't have breveted we couldn't have breveted you couldn't have breveted they couldn't have breveted	I couldn't have been breveting you couldn't have been breveting she couldn't have been breveting we couldn't have been breveting you couldn't have been breveting they couldn't have been breveting

Interrogative form

Simple form	V-ing form
could I brevet? could you brevet? could she brevet? could we brevet? could you brevet? could they brevet?	could I be breveting? could you be breveting? could she be breveting? could we be breveting? could you be breveting? could they be breveting?
Perfect	V-ing perfect
could I have breveted? could you have breveted? could she have breveted? could we have breveted? could you have breveted? could they have breveted?	could I have been breveting? could you have been breveting? could she have been breveting? could we have been breveting? could you have been breveting? could they have been breveting?

Interro-negative form

Simple form	V-ing form
couldn't I brevet? couldn't you brevet? couldn't she brevet? couldn't we brevet? couldn't you brevet? couldn't they brevet?	couldn't I be breveting? couldn't you be breveting? couldn't she be breveting? couldn't we be breveting? couldn't you be breveting? couldn't they be breveting?
Perfect	V-ing perfect
couldn't I have breveted? couldn't you have breveted? couldn't she have breveted? couldn't we have breveted? couldn't you have breveted? couldn't they have breveted?	couldn't I have been breveting? couldn't you have been breveting? couldn't she have been breveting? couldn't we have been breveting? couldn't you have been breveting? couldn't they have been breveting?