I might brief you might brief he might brief we might brief you might brief they might brief
V-ing form
I might be briefing you might be briefing he might be briefing we might be briefing you might be briefing they might be briefing
Perfect
I might have briefed you might have briefed he might have briefed we might have briefed you might have briefed they might have briefed
V-ing perfect
I might have been briefing you might have been briefing he might have been briefing we might have been briefing you might have been briefing they might have been briefing
Negation
Simple form
I mightn't brief you mightn't brief he mightn't brief we mightn't brief you mightn't brief they mightn't brief
V-ing form
I mightn't be briefing you mightn't be briefing he mightn't be briefing we mightn't be briefing you mightn't be briefing they mightn't be briefing
Perfect
I mightn't have briefed you mightn't have briefed he mightn't have briefed we mightn't have briefed you mightn't have briefed they mightn't have briefed
V-ing perfect
I mightn't have been briefing you mightn't have been briefing he mightn't have been briefing we mightn't have been briefing you mightn't have been briefing they mightn't have been briefing
Interrogative form
Simple form
might I brief? might you brief? might he brief? might we brief? might you brief? might they brief?
V-ing form
might I be briefing? might you be briefing? might he be briefing? might we be briefing? might you be briefing? might they be briefing?
Perfect
might I have briefed? might you have briefed? might he have briefed? might we have briefed? might you have briefed? might they have briefed?
V-ing perfect
might I have been briefing? might you have been briefing? might he have been briefing? might we have been briefing? might you have been briefing? might they have been briefing?
Interro-negative form
Simple form
mightn't I brief? mightn't you brief? mightn't he brief? mightn't we brief? mightn't you brief? mightn't they brief?
V-ing form
mightn't I be briefing? mightn't you be briefing? mightn't he be briefing? mightn't we be briefing? mightn't you be briefing? mightn't they be briefing?
Perfect
mightn't I have briefed? mightn't you have briefed? mightn't he have briefed? mightn't we have briefed? mightn't you have briefed? mightn't they have briefed?
V-ing perfect
mightn't I have been briefing? mightn't you have been briefing? mightn't he have been briefing? mightn't we have been briefing? mightn't you have been briefing? mightn't they have been briefing?