may vitalise
Regular verb: vitalise - vitalised- vitalised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may vitalise
you may vitalise
he may vitalise
we may vitalise
you may vitalise
they may vitalise 	I may be vitalising
you may be vitalising
he may be vitalising
we may be vitalising
you may be vitalising
they may be vitalising	I may have vitalised
you may have vitalised
he may have vitalised
we may have vitalised
you may have vitalised
they may have vitalised	I may have been vitalising
you may have been vitalising
he may have been vitalising
we may have been vitalising
you may have been vitalising
they may have been vitalising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't vitalise
you mayn't vitalise
he mayn't vitalise
we mayn't vitalise
you mayn't vitalise
they mayn't vitalise 	I mayn't be vitalising
you mayn't be vitalising
he mayn't be vitalising
we mayn't be vitalising
you mayn't be vitalising
they mayn't be vitalising	I mayn't have vitalised
you mayn't have vitalised
he mayn't have vitalised
we mayn't have vitalised
you mayn't have vitalised
they mayn't have vitalised	I mayn't have been vitalising
you mayn't have been vitalising
he mayn't have been vitalising
we mayn't have been vitalising
you mayn't have been vitalising
they mayn't have been vitalising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I vitalise?
may you vitalise?
may he vitalise?
may we vitalise?
may you vitalise?
may they vitalise? 	may I be vitalising?
may you be vitalising?
may he be vitalising?
may we be vitalising?
may you be vitalising?
may they be vitalising? 	may I have vitalised?
may you have vitalised?
may he have vitalised?
may we have vitalised?
may you have vitalised?
may they have vitalised? 	may I have been vitalising?
may you have been vitalising?
may he have been vitalising?
may we have been vitalising?
may you have been vitalising?
may they have been vitalising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I vitalise?
mayn't you vitalise?
mayn't he vitalise?
mayn't we vitalise?
mayn't you vitalise?
mayn't they vitalise? 	mayn't I be vitalising?
mayn't you be vitalising?
mayn't he be vitalising?
mayn't we be vitalising?
mayn't you be vitalising?
mayn't they be vitalising? 	mayn't I have vitalised?
mayn't you have vitalised?
mayn't he have vitalised?
mayn't we have vitalised?
mayn't you have vitalised?
mayn't they have vitalised? 	mayn't I have been vitalising?
mayn't you have been vitalising?
mayn't he have been vitalising?
mayn't we have been vitalising?
mayn't you have been vitalising?
mayn't they have been vitalising?