could begin
Verbo irregular: begin - began- begun

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could begin
you could begin
she could begin
we could begin
you could begin
they could begin 	I could be beginning
you could be beginning
she could be beginning
we could be beginning
you could be beginning
they could be beginning	I could have begun
you could have begun
she could have begun
we could have begun
you could have begun
they could have begun	I could have been beginning
you could have been beginning
she could have been beginning
we could have been beginning
you could have been beginning
they could have been beginning	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't begin
you couldn't begin
she couldn't begin
we couldn't begin
you couldn't begin
they couldn't begin 	I couldn't be beginning
you couldn't be beginning
she couldn't be beginning
we couldn't be beginning
you couldn't be beginning
they couldn't be beginning	I couldn't have begun
you couldn't have begun
she couldn't have begun
we couldn't have begun
you couldn't have begun
they couldn't have begun	I couldn't have been beginning
you couldn't have been beginning
she couldn't have been beginning
we couldn't have been beginning
you couldn't have been beginning
they couldn't have been beginning	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I begin?
could you begin?
could she begin?
could we begin?
could you begin?
could they begin? 	could I be beginning?
could you be beginning?
could she be beginning?
could we be beginning?
could you be beginning?
could they be beginning? 	could I have begun?
could you have begun?
could she have begun?
could we have begun?
could you have begun?
could they have begun? 	could I have been beginning?
could you have been beginning?
could she have been beginning?
could we have been beginning?
could you have been beginning?
could they have been beginning? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I begin?
couldn't you begin?
couldn't she begin?
couldn't we begin?
couldn't you begin?
couldn't they begin? 	couldn't I be beginning?
couldn't you be beginning?
couldn't she be beginning?
couldn't we be beginning?
couldn't you be beginning?
couldn't they be beginning? 	couldn't I have begun?
couldn't you have begun?
couldn't she have begun?
couldn't we have begun?
couldn't you have begun?
couldn't they have begun? 	couldn't I have been beginning?
couldn't you have been beginning?
couldn't she have been beginning?
couldn't we have been beginning?
couldn't you have been beginning?
couldn't they have been beginning?