can err
Verbo regular: err - erred- erred

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can err
you can err
he can err
we can err
you can err
they can err 	I can be erring
you can be erring
he can be erring
we can be erring
you can be erring
they can be erring	I can have erred
you can have erred
he can have erred
we can have erred
you can have erred
they can have erred	I can have been erring
you can have been erring
he can have been erring
we can have been erring
you can have been erring
they can have been erring	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can't err
you can't err
he can't err
we can't err
you can't err
they can't err 	I can't be erring
you can't be erring
he can't be erring
we can't be erring
you can't be erring
they can't be erring	I can't have erred
you can't have erred
he can't have erred
we can't have erred
you can't have erred
they can't have erred	I can't have been erring
you can't have been erring
he can't have been erring
we can't have been erring
you can't have been erring
they can't have been erring	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I err?
can you err?
can he err?
can we err?
can you err?
can they err? 	can I be erring?
can you be erring?
can he be erring?
can we be erring?
can you be erring?
can they be erring? 	can I have erred?
can you have erred?
can he have erred?
can we have erred?
can you have erred?
can they have erred? 	can I have been erring?
can you have been erring?
can he have been erring?
can we have been erring?
can you have been erring?
can they have been erring? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can't I err?
can't you err?
can't he err?
can't we err?
can't you err?
can't they err? 	can't I be erring?
can't you be erring?
can't he be erring?
can't we be erring?
can't you be erring?
can't they be erring? 	can't I have erred?
can't you have erred?
can't he have erred?
can't we have erred?
can't you have erred?
can't they have erred? 	can't I have been erring?
can't you have been erring?
can't he have been erring?
can't we have been erring?
can't you have been erring?
can't they have been erring?