English verb conjugation
MAY CRACKLE

Regular verb: crackle - crackled - crackled

Affirmation

Simple form	V-ing form
I may crackle you may crackle he may crackle we may crackle you may crackle they may crackle	I may be crackling you may be crackling he may be crackling we may be crackling you may be crackling they may be crackling
Perfect	V-ing perfect
I may have crackled you may have crackled he may have crackled we may have crackled you may have crackled they may have crackled	I may have been crackling you may have been crackling he may have been crackling we may have been crackling you may have been crackling they may have been crackling

Negation

Simple form	V-ing form
I mayn't crackle you mayn't crackle he mayn't crackle we mayn't crackle you mayn't crackle they mayn't crackle	I mayn't be crackling you mayn't be crackling he mayn't be crackling we mayn't be crackling you mayn't be crackling they mayn't be crackling
Perfect	V-ing perfect
I mayn't have crackled you mayn't have crackled he mayn't have crackled we mayn't have crackled you mayn't have crackled they mayn't have crackled	I mayn't have been crackling you mayn't have been crackling he mayn't have been crackling we mayn't have been crackling you mayn't have been crackling they mayn't have been crackling

Interrogative form

Simple form	V-ing form
may I crackle? may you crackle? may he crackle? may we crackle? may you crackle? may they crackle?	may I be crackling? may you be crackling? may he be crackling? may we be crackling? may you be crackling? may they be crackling?
Perfect	V-ing perfect
may I have crackled? may you have crackled? may he have crackled? may we have crackled? may you have crackled? may they have crackled?	may I have been crackling? may you have been crackling? may he have been crackling? may we have been crackling? may you have been crackling? may they have been crackling?

Interro-negative form

Simple form	V-ing form
mayn't I crackle? mayn't you crackle? mayn't he crackle? mayn't we crackle? mayn't you crackle? mayn't they crackle?	mayn't I be crackling? mayn't you be crackling? mayn't he be crackling? mayn't we be crackling? mayn't you be crackling? mayn't they be crackling?
Perfect	V-ing perfect
mayn't I have crackled? mayn't you have crackled? mayn't he have crackled? mayn't we have crackled? mayn't you have crackled? mayn't they have crackled?	mayn't I have been crackling? mayn't you have been crackling? mayn't he have been crackling? mayn't we have been crackling? mayn't you have been crackling? mayn't they have been crackling?