Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I might speak. talk you might speak. talk she might speak. talk we might speak. talk you might speak. talk they might speak. talk
V-ing form
I might be speak. talking you might be speak. talking she might be speak. talking we might be speak. talking you might be speak. talking they might be speak. talking
Perfect
I might have speak. talked you might have speak. talked she might have speak. talked we might have speak. talked you might have speak. talked they might have speak. talked
V-ing perfect
I might have been speak. talking you might have been speak. talking she might have been speak. talking we might have been speak. talking you might have been speak. talking they might have been speak. talking
Negation
Simple form
I mightn't speak. talk you mightn't speak. talk she mightn't speak. talk we mightn't speak. talk you mightn't speak. talk they mightn't speak. talk
V-ing form
I mightn't be speak. talking you mightn't be speak. talking she mightn't be speak. talking we mightn't be speak. talking you mightn't be speak. talking they mightn't be speak. talking
Perfect
I mightn't have speak. talked you mightn't have speak. talked she mightn't have speak. talked we mightn't have speak. talked you mightn't have speak. talked they mightn't have speak. talked
V-ing perfect
I mightn't have been speak. talking you mightn't have been speak. talking she mightn't have been speak. talking we mightn't have been speak. talking you mightn't have been speak. talking they mightn't have been speak. talking
Interrogative form
Simple form
might I speak. talk? might you speak. talk? might she speak. talk? might we speak. talk? might you speak. talk? might they speak. talk?
V-ing form
might I be speak. talking? might you be speak. talking? might she be speak. talking? might we be speak. talking? might you be speak. talking? might they be speak. talking?
Perfect
might I have speak. talked? might you have speak. talked? might she have speak. talked? might we have speak. talked? might you have speak. talked? might they have speak. talked?
V-ing perfect
might I have been speak. talking? might you have been speak. talking? might she have been speak. talking? might we have been speak. talking? might you have been speak. talking? might they have been speak. talking?
Interro-negative form
Simple form
mightn't I speak. talk? mightn't you speak. talk? mightn't she speak. talk? mightn't we speak. talk? mightn't you speak. talk? mightn't they speak. talk?
V-ing form
mightn't I be speak. talking? mightn't you be speak. talking? mightn't she be speak. talking? mightn't we be speak. talking? mightn't you be speak. talking? mightn't they be speak. talking?
Perfect
mightn't I have speak. talked? mightn't you have speak. talked? mightn't she have speak. talked? mightn't we have speak. talked? mightn't you have speak. talked? mightn't they have speak. talked?
V-ing perfect
mightn't I have been speak. talking? mightn't you have been speak. talking? mightn't she have been speak. talking? mightn't we have been speak. talking? mightn't you have been speak. talking? mightn't they have been speak. talking?