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