can null
Verbo regular: null - nulled- nulled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can null
you can null
he can null
we can null
you can null
they can null 	I can be nulling
you can be nulling
he can be nulling
we can be nulling
you can be nulling
they can be nulling	I can have nulled
you can have nulled
he can have nulled
we can have nulled
you can have nulled
they can have nulled	I can have been nulling
you can have been nulling
he can have been nulling
we can have been nulling
you can have been nulling
they can have been nulling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can't null
you can't null
he can't null
we can't null
you can't null
they can't null 	I can't be nulling
you can't be nulling
he can't be nulling
we can't be nulling
you can't be nulling
they can't be nulling	I can't have nulled
you can't have nulled
he can't have nulled
we can't have nulled
you can't have nulled
they can't have nulled	I can't have been nulling
you can't have been nulling
he can't have been nulling
we can't have been nulling
you can't have been nulling
they can't have been nulling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I null?
can you null?
can he null?
can we null?
can you null?
can they null? 	can I be nulling?
can you be nulling?
can he be nulling?
can we be nulling?
can you be nulling?
can they be nulling? 	can I have nulled?
can you have nulled?
can he have nulled?
can we have nulled?
can you have nulled?
can they have nulled? 	can I have been nulling?
can you have been nulling?
can he have been nulling?
can we have been nulling?
can you have been nulling?
can they have been nulling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can't I null?
can't you null?
can't he null?
can't we null?
can't you null?
can't they null? 	can't I be nulling?
can't you be nulling?
can't he be nulling?
can't we be nulling?
can't you be nulling?
can't they be nulling? 	can't I have nulled?
can't you have nulled?
can't he have nulled?
can't we have nulled?
can't you have nulled?
can't they have nulled? 	can't I have been nulling?
can't you have been nulling?
can't he have been nulling?
can't we have been nulling?
can't you have been nulling?
can't they have been nulling?