I could bloviate you could bloviate he could bloviate we could bloviate you could bloviate they could bloviate
V-ing form
I could be bloviating you could be bloviating he could be bloviating we could be bloviating you could be bloviating they could be bloviating
Perfect
I could have bloviated you could have bloviated he could have bloviated we could have bloviated you could have bloviated they could have bloviated
V-ing perfect
I could have been bloviating you could have been bloviating he could have been bloviating we could have been bloviating you could have been bloviating they could have been bloviating
Negation
Simple form
I could not bloviate you could not bloviate he could not bloviate we could not bloviate you could not bloviate they could not bloviate
V-ing form
I could not be bloviating you could not be bloviating he could not be bloviating we could not be bloviating you could not be bloviating they could not be bloviating
Perfect
I could not have bloviated you could not have bloviated he could not have bloviated we could not have bloviated you could not have bloviated they could not have bloviated
V-ing perfect
I could not have been bloviating you could not have been bloviating he could not have been bloviating we could not have been bloviating you could not have been bloviating they could not have been bloviating
Interrogative form
Simple form
could I bloviate? could you bloviate? could he bloviate? could we bloviate? could you bloviate? could they bloviate?
V-ing form
could I be bloviating? could you be bloviating? could he be bloviating? could we be bloviating? could you be bloviating? could they be bloviating?
Perfect
could I have bloviated? could you have bloviated? could he have bloviated? could we have bloviated? could you have bloviated? could they have bloviated?
V-ing perfect
could I have been bloviating? could you have been bloviating? could he have been bloviating? could we have been bloviating? could you have been bloviating? could they have been bloviating?
Interro-negative form
Simple form
could I not bloviate? could you not bloviate? could he not bloviate? could we not bloviate? could you not bloviate? could they not bloviate?
V-ing form
could I not be bloviating? could you not be bloviating? could he not be bloviating? could we not be bloviating? could you not be bloviating? could they not be bloviating?
Perfect
could I not have bloviated? could you not have bloviated? could he not have bloviated? could we not have bloviated? could you not have bloviated? could they not have bloviated?
V-ing perfect
could I not have been bloviating? could you not have been bloviating? could he not have been bloviating? could we not have been bloviating? could you not have been bloviating? could they not have been bloviating?