I could annunciate you could annunciate he could annunciate we could annunciate you could annunciate they could annunciate
V-ing form
I could be annunciating you could be annunciating he could be annunciating we could be annunciating you could be annunciating they could be annunciating
Perfect
I could have annunciated you could have annunciated he could have annunciated we could have annunciated you could have annunciated they could have annunciated
V-ing perfect
I could have been annunciating you could have been annunciating he could have been annunciating we could have been annunciating you could have been annunciating they could have been annunciating
Negation
Simple form
I couldn't annunciate you couldn't annunciate he couldn't annunciate we couldn't annunciate you couldn't annunciate they couldn't annunciate
V-ing form
I couldn't be annunciating you couldn't be annunciating he couldn't be annunciating we couldn't be annunciating you couldn't be annunciating they couldn't be annunciating
Perfect
I couldn't have annunciated you couldn't have annunciated he couldn't have annunciated we couldn't have annunciated you couldn't have annunciated they couldn't have annunciated
V-ing perfect
I couldn't have been annunciating you couldn't have been annunciating he couldn't have been annunciating we couldn't have been annunciating you couldn't have been annunciating they couldn't have been annunciating
Interrogative form
Simple form
could I annunciate? could you annunciate? could he annunciate? could we annunciate? could you annunciate? could they annunciate?
V-ing form
could I be annunciating? could you be annunciating? could he be annunciating? could we be annunciating? could you be annunciating? could they be annunciating?
Perfect
could I have annunciated? could you have annunciated? could he have annunciated? could we have annunciated? could you have annunciated? could they have annunciated?
V-ing perfect
could I have been annunciating? could you have been annunciating? could he have been annunciating? could we have been annunciating? could you have been annunciating? could they have been annunciating?
Interro-negative form
Simple form
couldn't I annunciate? couldn't you annunciate? couldn't he annunciate? couldn't we annunciate? couldn't you annunciate? couldn't they annunciate?
V-ing form
couldn't I be annunciating? couldn't you be annunciating? couldn't he be annunciating? couldn't we be annunciating? couldn't you be annunciating? couldn't they be annunciating?
Perfect
couldn't I have annunciated? couldn't you have annunciated? couldn't he have annunciated? couldn't we have annunciated? couldn't you have annunciated? couldn't they have annunciated?
V-ing perfect
couldn't I have been annunciating? couldn't you have been annunciating? couldn't he have been annunciating? couldn't we have been annunciating? couldn't you have been annunciating? couldn't they have been annunciating?