may vanquish
Regular verb: vanquish - vanquished- vanquished

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may vanquish
you may vanquish
he may vanquish
we may vanquish
you may vanquish
they may vanquish 	I may be vanquishing
you may be vanquishing
he may be vanquishing
we may be vanquishing
you may be vanquishing
they may be vanquishing	I may have vanquished
you may have vanquished
he may have vanquished
we may have vanquished
you may have vanquished
they may have vanquished	I may have been vanquishing
you may have been vanquishing
he may have been vanquishing
we may have been vanquishing
you may have been vanquishing
they may have been vanquishing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't vanquish
you mayn't vanquish
he mayn't vanquish
we mayn't vanquish
you mayn't vanquish
they mayn't vanquish 	I mayn't be vanquishing
you mayn't be vanquishing
he mayn't be vanquishing
we mayn't be vanquishing
you mayn't be vanquishing
they mayn't be vanquishing	I mayn't have vanquished
you mayn't have vanquished
he mayn't have vanquished
we mayn't have vanquished
you mayn't have vanquished
they mayn't have vanquished	I mayn't have been vanquishing
you mayn't have been vanquishing
he mayn't have been vanquishing
we mayn't have been vanquishing
you mayn't have been vanquishing
they mayn't have been vanquishing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I vanquish?
may you vanquish?
may he vanquish?
may we vanquish?
may you vanquish?
may they vanquish? 	may I be vanquishing?
may you be vanquishing?
may he be vanquishing?
may we be vanquishing?
may you be vanquishing?
may they be vanquishing? 	may I have vanquished?
may you have vanquished?
may he have vanquished?
may we have vanquished?
may you have vanquished?
may they have vanquished? 	may I have been vanquishing?
may you have been vanquishing?
may he have been vanquishing?
may we have been vanquishing?
may you have been vanquishing?
may they have been vanquishing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I vanquish?
mayn't you vanquish?
mayn't he vanquish?
mayn't we vanquish?
mayn't you vanquish?
mayn't they vanquish? 	mayn't I be vanquishing?
mayn't you be vanquishing?
mayn't he be vanquishing?
mayn't we be vanquishing?
mayn't you be vanquishing?
mayn't they be vanquishing? 	mayn't I have vanquished?
mayn't you have vanquished?
mayn't he have vanquished?
mayn't we have vanquished?
mayn't you have vanquished?
mayn't they have vanquished? 	mayn't I have been vanquishing?
mayn't you have been vanquishing?
mayn't he have been vanquishing?
mayn't we have been vanquishing?
mayn't you have been vanquishing?
mayn't they have been vanquishing?