English verb conjugation
MAY YIP

Regular verb: yip - yipped - yipped

Affirmation

Simple form	V-ing form
I may yip you may yip he may yip we may yip you may yip they may yip	I may be yipping you may be yipping he may be yipping we may be yipping you may be yipping they may be yipping
Perfect	V-ing perfect
I may have yipped you may have yipped he may have yipped we may have yipped you may have yipped they may have yipped	I may have been yipping you may have been yipping he may have been yipping we may have been yipping you may have been yipping they may have been yipping

Negation

Simple form	V-ing form
I mayn't yip you mayn't yip he mayn't yip we mayn't yip you mayn't yip they mayn't yip	I mayn't be yipping you mayn't be yipping he mayn't be yipping we mayn't be yipping you mayn't be yipping they mayn't be yipping
Perfect	V-ing perfect
I mayn't have yipped you mayn't have yipped he mayn't have yipped we mayn't have yipped you mayn't have yipped they mayn't have yipped	I mayn't have been yipping you mayn't have been yipping he mayn't have been yipping we mayn't have been yipping you mayn't have been yipping they mayn't have been yipping

Interrogative form

Simple form	V-ing form
may I yip? may you yip? may he yip? may we yip? may you yip? may they yip?	may I be yipping? may you be yipping? may he be yipping? may we be yipping? may you be yipping? may they be yipping?
Perfect	V-ing perfect
may I have yipped? may you have yipped? may he have yipped? may we have yipped? may you have yipped? may they have yipped?	may I have been yipping? may you have been yipping? may he have been yipping? may we have been yipping? may you have been yipping? may they have been yipping?

Interro-negative form

Simple form	V-ing form
mayn't I yip? mayn't you yip? mayn't he yip? mayn't we yip? mayn't you yip? mayn't they yip?	mayn't I be yipping? mayn't you be yipping? mayn't he be yipping? mayn't we be yipping? mayn't you be yipping? mayn't they be yipping?
Perfect	V-ing perfect
mayn't I have yipped? mayn't you have yipped? mayn't he have yipped? mayn't we have yipped? mayn't you have yipped? mayn't they have yipped?	mayn't I have been yipping? mayn't you have been yipping? mayn't he have been yipping? mayn't we have been yipping? mayn't you have been yipping? mayn't they have been yipping?