I might concertina you might concertina she might concertina we might concertina you might concertina they might concertina
V-ing form
I might be concertinaing you might be concertinaing she might be concertinaing we might be concertinaing you might be concertinaing they might be concertinaing
Perfect
I might have concertinaed you might have concertinaed she might have concertinaed we might have concertinaed you might have concertinaed they might have concertinaed
V-ing perfect
I might have been concertinaing you might have been concertinaing she might have been concertinaing we might have been concertinaing you might have been concertinaing they might have been concertinaing
Negation
Simple form
I mightn't concertina you mightn't concertina she mightn't concertina we mightn't concertina you mightn't concertina they mightn't concertina
V-ing form
I mightn't be concertinaing you mightn't be concertinaing she mightn't be concertinaing we mightn't be concertinaing you mightn't be concertinaing they mightn't be concertinaing
Perfect
I mightn't have concertinaed you mightn't have concertinaed she mightn't have concertinaed we mightn't have concertinaed you mightn't have concertinaed they mightn't have concertinaed
V-ing perfect
I mightn't have been concertinaing you mightn't have been concertinaing she mightn't have been concertinaing we mightn't have been concertinaing you mightn't have been concertinaing they mightn't have been concertinaing
Interrogative form
Simple form
might I concertina? might you concertina? might she concertina? might we concertina? might you concertina? might they concertina?
V-ing form
might I be concertinaing? might you be concertinaing? might she be concertinaing? might we be concertinaing? might you be concertinaing? might they be concertinaing?
Perfect
might I have concertinaed? might you have concertinaed? might she have concertinaed? might we have concertinaed? might you have concertinaed? might they have concertinaed?
V-ing perfect
might I have been concertinaing? might you have been concertinaing? might she have been concertinaing? might we have been concertinaing? might you have been concertinaing? might they have been concertinaing?
Interro-negative form
Simple form
mightn't I concertina? mightn't you concertina? mightn't she concertina? mightn't we concertina? mightn't you concertina? mightn't they concertina?
V-ing form
mightn't I be concertinaing? mightn't you be concertinaing? mightn't she be concertinaing? mightn't we be concertinaing? mightn't you be concertinaing? mightn't they be concertinaing?
Perfect
mightn't I have concertinaed? mightn't you have concertinaed? mightn't she have concertinaed? mightn't we have concertinaed? mightn't you have concertinaed? mightn't they have concertinaed?
V-ing perfect
mightn't I have been concertinaing? mightn't you have been concertinaing? mightn't she have been concertinaing? mightn't we have been concertinaing? mightn't you have been concertinaing? mightn't they have been concertinaing?