could caterwaul
Verbo regular: caterwaul - caterwauled- caterwauled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could caterwaul
you could caterwaul
she could caterwaul
we could caterwaul
you could caterwaul
they could caterwaul 	I could be caterwauling
you could be caterwauling
she could be caterwauling
we could be caterwauling
you could be caterwauling
they could be caterwauling	I could have caterwauled
you could have caterwauled
she could have caterwauled
we could have caterwauled
you could have caterwauled
they could have caterwauled	I could have been caterwauling
you could have been caterwauling
she could have been caterwauling
we could have been caterwauling
you could have been caterwauling
they could have been caterwauling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not caterwaul
you could not caterwaul
she could not caterwaul
we could not caterwaul
you could not caterwaul
they could not caterwaul 	I could not be caterwauling
you could not be caterwauling
she could not be caterwauling
we could not be caterwauling
you could not be caterwauling
they could not be caterwauling	I could not have caterwauled
you could not have caterwauled
she could not have caterwauled
we could not have caterwauled
you could not have caterwauled
they could not have caterwauled	I could not have been caterwauling
you could not have been caterwauling
she could not have been caterwauling
we could not have been caterwauling
you could not have been caterwauling
they could not have been caterwauling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I caterwaul?
could you caterwaul?
could she caterwaul?
could we caterwaul?
could you caterwaul?
could they caterwaul? 	could I be caterwauling?
could you be caterwauling?
could she be caterwauling?
could we be caterwauling?
could you be caterwauling?
could they be caterwauling? 	could I have caterwauled?
could you have caterwauled?
could she have caterwauled?
could we have caterwauled?
could you have caterwauled?
could they have caterwauled? 	could I have been caterwauling?
could you have been caterwauling?
could she have been caterwauling?
could we have been caterwauling?
could you have been caterwauling?
could they have been caterwauling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not caterwaul?
could you not caterwaul?
could she not caterwaul?
could we not caterwaul?
could you not caterwaul?
could they not caterwaul? 	could I not be caterwauling?
could you not be caterwauling?
could she not be caterwauling?
could we not be caterwauling?
could you not be caterwauling?
could they not be caterwauling? 	could I not have caterwauled?
could you not have caterwauled?
could she not have caterwauled?
could we not have caterwauled?
could you not have caterwauled?
could they not have caterwauled? 	could I not have been caterwauling?
could you not have been caterwauling?
could she not have been caterwauling?
could we not have been caterwauling?
could you not have been caterwauling?
could they not have been caterwauling?