I may cripple you may cripple he may cripple we may cripple you may cripple they may cripple
V-ing form
I may be crippling you may be crippling he may be crippling we may be crippling you may be crippling they may be crippling
Perfect
I may have crippled you may have crippled he may have crippled we may have crippled you may have crippled they may have crippled
V-ing perfect
I may have been crippling you may have been crippling he may have been crippling we may have been crippling you may have been crippling they may have been crippling
Negation
Simple form
I may not cripple you may not cripple he may not cripple we may not cripple you may not cripple they may not cripple
V-ing form
I may not be crippling you may not be crippling he may not be crippling we may not be crippling you may not be crippling they may not be crippling
Perfect
I may not have crippled you may not have crippled he may not have crippled we may not have crippled you may not have crippled they may not have crippled
V-ing perfect
I may not have been crippling you may not have been crippling he may not have been crippling we may not have been crippling you may not have been crippling they may not have been crippling
Interrogative form
Simple form
may I cripple? may you cripple? may he cripple? may we cripple? may you cripple? may they cripple?
V-ing form
may I be crippling? may you be crippling? may he be crippling? may we be crippling? may you be crippling? may they be crippling?
Perfect
may I have crippled? may you have crippled? may he have crippled? may we have crippled? may you have crippled? may they have crippled?
V-ing perfect
may I have been crippling? may you have been crippling? may he have been crippling? may we have been crippling? may you have been crippling? may they have been crippling?
Interro-negative form
Simple form
may I not cripple? may you not cripple? may he not cripple? may we not cripple? may you not cripple? may they not cripple?
V-ing form
may I not be crippling? may you not be crippling? may he not be crippling? may we not be crippling? may you not be crippling? may they not be crippling?
Perfect
may I not have crippled? may you not have crippled? may he not have crippled? may we not have crippled? may you not have crippled? may they not have crippled?
V-ing perfect
may I not have been crippling? may you not have been crippling? may he not have been crippling? may we not have been crippling? may you not have been crippling? may they not have been crippling?