I may crinkle you may crinkle she may crinkle we may crinkle you may crinkle they may crinkle
V-ing form
I may be crinkling you may be crinkling she may be crinkling we may be crinkling you may be crinkling they may be crinkling
Perfect
I may have crinkled you may have crinkled she may have crinkled we may have crinkled you may have crinkled they may have crinkled
V-ing perfect
I may have been crinkling you may have been crinkling she may have been crinkling we may have been crinkling you may have been crinkling they may have been crinkling
Negation
Simple form
I mayn't crinkle you mayn't crinkle she mayn't crinkle we mayn't crinkle you mayn't crinkle they mayn't crinkle
V-ing form
I mayn't be crinkling you mayn't be crinkling she mayn't be crinkling we mayn't be crinkling you mayn't be crinkling they mayn't be crinkling
Perfect
I mayn't have crinkled you mayn't have crinkled she mayn't have crinkled we mayn't have crinkled you mayn't have crinkled they mayn't have crinkled
V-ing perfect
I mayn't have been crinkling you mayn't have been crinkling she mayn't have been crinkling we mayn't have been crinkling you mayn't have been crinkling they mayn't have been crinkling
Interrogative form
Simple form
may I crinkle? may you crinkle? may she crinkle? may we crinkle? may you crinkle? may they crinkle?
V-ing form
may I be crinkling? may you be crinkling? may she be crinkling? may we be crinkling? may you be crinkling? may they be crinkling?
Perfect
may I have crinkled? may you have crinkled? may she have crinkled? may we have crinkled? may you have crinkled? may they have crinkled?
V-ing perfect
may I have been crinkling? may you have been crinkling? may she have been crinkling? may we have been crinkling? may you have been crinkling? may they have been crinkling?
Interro-negative form
Simple form
mayn't I crinkle? mayn't you crinkle? mayn't she crinkle? mayn't we crinkle? mayn't you crinkle? mayn't they crinkle?
V-ing form
mayn't I be crinkling? mayn't you be crinkling? mayn't she be crinkling? mayn't we be crinkling? mayn't you be crinkling? mayn't they be crinkling?
Perfect
mayn't I have crinkled? mayn't you have crinkled? mayn't she have crinkled? mayn't we have crinkled? mayn't you have crinkled? mayn't they have crinkled?
V-ing perfect
mayn't I have been crinkling? mayn't you have been crinkling? mayn't she have been crinkling? mayn't we have been crinkling? mayn't you have been crinkling? mayn't they have been crinkling?