English verb conjugation
MAY TOPPLE

Regular verb: topple - toppled - toppled

Affirmation

Simple form	V-ing form
I may topple you may topple he may topple we may topple you may topple they may topple	I may be toppling you may be toppling he may be toppling we may be toppling you may be toppling they may be toppling
Perfect	V-ing perfect
I may have toppled you may have toppled he may have toppled we may have toppled you may have toppled they may have toppled	I may have been toppling you may have been toppling he may have been toppling we may have been toppling you may have been toppling they may have been toppling

Negation

Simple form	V-ing form
I mayn't topple you mayn't topple he mayn't topple we mayn't topple you mayn't topple they mayn't topple	I mayn't be toppling you mayn't be toppling he mayn't be toppling we mayn't be toppling you mayn't be toppling they mayn't be toppling
Perfect	V-ing perfect
I mayn't have toppled you mayn't have toppled he mayn't have toppled we mayn't have toppled you mayn't have toppled they mayn't have toppled	I mayn't have been toppling you mayn't have been toppling he mayn't have been toppling we mayn't have been toppling you mayn't have been toppling they mayn't have been toppling

Interrogative form

Simple form	V-ing form
may I topple? may you topple? may he topple? may we topple? may you topple? may they topple?	may I be toppling? may you be toppling? may he be toppling? may we be toppling? may you be toppling? may they be toppling?
Perfect	V-ing perfect
may I have toppled? may you have toppled? may he have toppled? may we have toppled? may you have toppled? may they have toppled?	may I have been toppling? may you have been toppling? may he have been toppling? may we have been toppling? may you have been toppling? may they have been toppling?

Interro-negative form

Simple form	V-ing form
mayn't I topple? mayn't you topple? mayn't he topple? mayn't we topple? mayn't you topple? mayn't they topple?	mayn't I be toppling? mayn't you be toppling? mayn't he be toppling? mayn't we be toppling? mayn't you be toppling? mayn't they be toppling?
Perfect	V-ing perfect
mayn't I have toppled? mayn't you have toppled? mayn't he have toppled? mayn't we have toppled? mayn't you have toppled? mayn't they have toppled?	mayn't I have been toppling? mayn't you have been toppling? mayn't he have been toppling? mayn't we have been toppling? mayn't you have been toppling? mayn't they have been toppling?