may caterwaul
Regular verb: caterwaul - caterwauled- caterwauled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may caterwaul
you may caterwaul
she may caterwaul
we may caterwaul
you may caterwaul
they may caterwaul 	I may be caterwauling
you may be caterwauling
she may be caterwauling
we may be caterwauling
you may be caterwauling
they may be caterwauling	I may have caterwauled
you may have caterwauled
she may have caterwauled
we may have caterwauled
you may have caterwauled
they may have caterwauled	I may have been caterwauling
you may have been caterwauling
she may have been caterwauling
we may have been caterwauling
you may have been caterwauling
they may have been caterwauling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may not caterwaul
you may not caterwaul
she may not caterwaul
we may not caterwaul
you may not caterwaul
they may not caterwaul 	I may not be caterwauling
you may not be caterwauling
she may not be caterwauling
we may not be caterwauling
you may not be caterwauling
they may not be caterwauling	I may not have caterwauled
you may not have caterwauled
she may not have caterwauled
we may not have caterwauled
you may not have caterwauled
they may not have caterwauled	I may not have been caterwauling
you may not have been caterwauling
she may not have been caterwauling
we may not have been caterwauling
you may not have been caterwauling
they may not have been caterwauling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I caterwaul?
may you caterwaul?
may she caterwaul?
may we caterwaul?
may you caterwaul?
may they caterwaul? 	may I be caterwauling?
may you be caterwauling?
may she be caterwauling?
may we be caterwauling?
may you be caterwauling?
may they be caterwauling? 	may I have caterwauled?
may you have caterwauled?
may she have caterwauled?
may we have caterwauled?
may you have caterwauled?
may they have caterwauled? 	may I have been caterwauling?
may you have been caterwauling?
may she have been caterwauling?
may we have been caterwauling?
may you have been caterwauling?
may they have been caterwauling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not caterwaul?
may you not caterwaul?
may she not caterwaul?
may we not caterwaul?
may you not caterwaul?
may they not caterwaul? 	may I not be caterwauling?
may you not be caterwauling?
may she not be caterwauling?
may we not be caterwauling?
may you not be caterwauling?
may they not be caterwauling? 	may I not have caterwauled?
may you not have caterwauled?
may she not have caterwauled?
may we not have caterwauled?
may you not have caterwauled?
may they not have caterwauled? 	may I not have been caterwauling?
may you not have been caterwauling?
may she not have been caterwauling?
may we not have been caterwauling?
may you not have been caterwauling?
may they not have been caterwauling?