could catechise
Verbo regular: catechise - catechised- catechised

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could catechise
you could catechise
she could catechise
we could catechise
you could catechise
they could catechise 	I could be catechising
you could be catechising
she could be catechising
we could be catechising
you could be catechising
they could be catechising	I could have catechised
you could have catechised
she could have catechised
we could have catechised
you could have catechised
they could have catechised	I could have been catechising
you could have been catechising
she could have been catechising
we could have been catechising
you could have been catechising
they could have been catechising	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not catechise
you could not catechise
she could not catechise
we could not catechise
you could not catechise
they could not catechise 	I could not be catechising
you could not be catechising
she could not be catechising
we could not be catechising
you could not be catechising
they could not be catechising	I could not have catechised
you could not have catechised
she could not have catechised
we could not have catechised
you could not have catechised
they could not have catechised	I could not have been catechising
you could not have been catechising
she could not have been catechising
we could not have been catechising
you could not have been catechising
they could not have been catechising	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I catechise?
could you catechise?
could she catechise?
could we catechise?
could you catechise?
could they catechise? 	could I be catechising?
could you be catechising?
could she be catechising?
could we be catechising?
could you be catechising?
could they be catechising? 	could I have catechised?
could you have catechised?
could she have catechised?
could we have catechised?
could you have catechised?
could they have catechised? 	could I have been catechising?
could you have been catechising?
could she have been catechising?
could we have been catechising?
could you have been catechising?
could they have been catechising? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not catechise?
could you not catechise?
could she not catechise?
could we not catechise?
could you not catechise?
could they not catechise? 	could I not be catechising?
could you not be catechising?
could she not be catechising?
could we not be catechising?
could you not be catechising?
could they not be catechising? 	could I not have catechised?
could you not have catechised?
could she not have catechised?
could we not have catechised?
could you not have catechised?
could they not have catechised? 	could I not have been catechising?
could you not have been catechising?
could she not have been catechising?
could we not have been catechising?
could you not have been catechising?
could they not have been catechising?