Conjugação do verbo inglês
CAN RETROFIRE

Verbo regular: retrofire - retrofired - retrofired

Afirmação

Forma simple	Forma com V-ing
I can retrofire you can retrofire he can retrofire we can retrofire you can retrofire they can retrofire	I can be retrofiring you can be retrofiring he can be retrofiring we can be retrofiring you can be retrofiring they can be retrofiring
Perfeito	Perfeito com V-ing
I can have retrofired you can have retrofired he can have retrofired we can have retrofired you can have retrofired they can have retrofired	I can have been retrofiring you can have been retrofiring he can have been retrofiring we can have been retrofiring you can have been retrofiring they can have been retrofiring

Negação

Forma simple	Forma com V-ing
I can't retrofire you can't retrofire he can't retrofire we can't retrofire you can't retrofire they can't retrofire	I can't be retrofiring you can't be retrofiring he can't be retrofiring we can't be retrofiring you can't be retrofiring they can't be retrofiring
Perfeito	Perfeito com V-ing
I can't have retrofired you can't have retrofired he can't have retrofired we can't have retrofired you can't have retrofired they can't have retrofired	I can't have been retrofiring you can't have been retrofiring he can't have been retrofiring we can't have been retrofiring you can't have been retrofiring they can't have been retrofiring

Forma interrogativa

Forma simple	Forma com V-ing
can I retrofire? can you retrofire? can he retrofire? can we retrofire? can you retrofire? can they retrofire?	can I be retrofiring? can you be retrofiring? can he be retrofiring? can we be retrofiring? can you be retrofiring? can they be retrofiring?
Perfeito	Perfeito com V-ing
can I have retrofired? can you have retrofired? can he have retrofired? can we have retrofired? can you have retrofired? can they have retrofired?	can I have been retrofiring? can you have been retrofiring? can he have been retrofiring? can we have been retrofiring? can you have been retrofiring? can they have been retrofiring?

Forma interro-Negação

Forma simple	Forma com V-ing
can't I retrofire? can't you retrofire? can't he retrofire? can't we retrofire? can't you retrofire? can't they retrofire?	can't I be retrofiring? can't you be retrofiring? can't he be retrofiring? can't we be retrofiring? can't you be retrofiring? can't they be retrofiring?
Perfeito	Perfeito com V-ing
can't I have retrofired? can't you have retrofired? can't he have retrofired? can't we have retrofired? can't you have retrofired? can't they have retrofired?	can't I have been retrofiring? can't you have been retrofiring? can't he have been retrofiring? can't we have been retrofiring? can't you have been retrofiring? can't they have been retrofiring?