English verb conjugation
MAY CREAK

Regular verb: creak - creaked - creaked

Affirmation

Simple form	V-ing form
I may creak you may creak he may creak we may creak you may creak they may creak	I may be creaking you may be creaking he may be creaking we may be creaking you may be creaking they may be creaking
Perfect	V-ing perfect
I may have creaked you may have creaked he may have creaked we may have creaked you may have creaked they may have creaked	I may have been creaking you may have been creaking he may have been creaking we may have been creaking you may have been creaking they may have been creaking

Negation

Simple form	V-ing form
I mayn't creak you mayn't creak he mayn't creak we mayn't creak you mayn't creak they mayn't creak	I mayn't be creaking you mayn't be creaking he mayn't be creaking we mayn't be creaking you mayn't be creaking they mayn't be creaking
Perfect	V-ing perfect
I mayn't have creaked you mayn't have creaked he mayn't have creaked we mayn't have creaked you mayn't have creaked they mayn't have creaked	I mayn't have been creaking you mayn't have been creaking he mayn't have been creaking we mayn't have been creaking you mayn't have been creaking they mayn't have been creaking

Interrogative form

Simple form	V-ing form
may I creak? may you creak? may he creak? may we creak? may you creak? may they creak?	may I be creaking? may you be creaking? may he be creaking? may we be creaking? may you be creaking? may they be creaking?
Perfect	V-ing perfect
may I have creaked? may you have creaked? may he have creaked? may we have creaked? may you have creaked? may they have creaked?	may I have been creaking? may you have been creaking? may he have been creaking? may we have been creaking? may you have been creaking? may they have been creaking?

Interro-negative form

Simple form	V-ing form
mayn't I creak? mayn't you creak? mayn't he creak? mayn't we creak? mayn't you creak? mayn't they creak?	mayn't I be creaking? mayn't you be creaking? mayn't he be creaking? mayn't we be creaking? mayn't you be creaking? mayn't they be creaking?
Perfect	V-ing perfect
mayn't I have creaked? mayn't you have creaked? mayn't he have creaked? mayn't we have creaked? mayn't you have creaked? mayn't they have creaked?	mayn't I have been creaking? mayn't you have been creaking? mayn't he have been creaking? mayn't we have been creaking? mayn't you have been creaking? mayn't they have been creaking?