Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I may tune up you may tune up she may tune up we may tune up you may tune up they may tune up
V-ing form
I may be tune uping you may be tune uping she may be tune uping we may be tune uping you may be tune uping they may be tune uping
Perfect
I may have tune uped you may have tune uped she may have tune uped we may have tune uped you may have tune uped they may have tune uped
V-ing perfect
I may have been tune uping you may have been tune uping she may have been tune uping we may have been tune uping you may have been tune uping they may have been tune uping
Negation
Simple form
I mayn't tune up you mayn't tune up she mayn't tune up we mayn't tune up you mayn't tune up they mayn't tune up
V-ing form
I mayn't be tune uping you mayn't be tune uping she mayn't be tune uping we mayn't be tune uping you mayn't be tune uping they mayn't be tune uping
Perfect
I mayn't have tune uped you mayn't have tune uped she mayn't have tune uped we mayn't have tune uped you mayn't have tune uped they mayn't have tune uped
V-ing perfect
I mayn't have been tune uping you mayn't have been tune uping she mayn't have been tune uping we mayn't have been tune uping you mayn't have been tune uping they mayn't have been tune uping
Interrogative form
Simple form
may I tune up? may you tune up? may she tune up? may we tune up? may you tune up? may they tune up?
V-ing form
may I be tune uping? may you be tune uping? may she be tune uping? may we be tune uping? may you be tune uping? may they be tune uping?
Perfect
may I have tune uped? may you have tune uped? may she have tune uped? may we have tune uped? may you have tune uped? may they have tune uped?
V-ing perfect
may I have been tune uping? may you have been tune uping? may she have been tune uping? may we have been tune uping? may you have been tune uping? may they have been tune uping?
Interro-negative form
Simple form
mayn't I tune up? mayn't you tune up? mayn't she tune up? mayn't we tune up? mayn't you tune up? mayn't they tune up?
V-ing form
mayn't I be tune uping? mayn't you be tune uping? mayn't she be tune uping? mayn't we be tune uping? mayn't you be tune uping? mayn't they be tune uping?
Perfect
mayn't I have tune uped? mayn't you have tune uped? mayn't she have tune uped? mayn't we have tune uped? mayn't you have tune uped? mayn't they have tune uped?
V-ing perfect
mayn't I have been tune uping? mayn't you have been tune uping? mayn't she have been tune uping? mayn't we have been tune uping? mayn't you have been tune uping? mayn't they have been tune uping?