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