I can unscrew you can unscrew she can unscrew we can unscrew you can unscrew they can unscrew
Forma com V-ing
I can be unscrewing you can be unscrewing she can be unscrewing we can be unscrewing you can be unscrewing they can be unscrewing
Perfeito
I can have unscrewed you can have unscrewed she can have unscrewed we can have unscrewed you can have unscrewed they can have unscrewed
Perfeito com V-ing
I can have been unscrewing you can have been unscrewing she can have been unscrewing we can have been unscrewing you can have been unscrewing they can have been unscrewing
Negação
Forma simple
I cannot unscrew you cannot unscrew she cannot unscrew we cannot unscrew you cannot unscrew they cannot unscrew
Forma com V-ing
I cannot be unscrewing you cannot be unscrewing she cannot be unscrewing we cannot be unscrewing you cannot be unscrewing they cannot be unscrewing
Perfeito
I cannot have unscrewed you cannot have unscrewed she cannot have unscrewed we cannot have unscrewed you cannot have unscrewed they cannot have unscrewed
Perfeito com V-ing
I cannot have been unscrewing you cannot have been unscrewing she cannot have been unscrewing we cannot have been unscrewing you cannot have been unscrewing they cannot have been unscrewing
Forma interrogativa
Forma simple
can I unscrew? can you unscrew? can she unscrew? can we unscrew? can you unscrew? can they unscrew?
Forma com V-ing
can I be unscrewing? can you be unscrewing? can she be unscrewing? can we be unscrewing? can you be unscrewing? can they be unscrewing?
Perfeito
can I have unscrewed? can you have unscrewed? can she have unscrewed? can we have unscrewed? can you have unscrewed? can they have unscrewed?
Perfeito com V-ing
can I have been unscrewing? can you have been unscrewing? can she have been unscrewing? can we have been unscrewing? can you have been unscrewing? can they have been unscrewing?
Forma interro-Negação
Forma simple
can I not unscrew? can you not unscrew? can she not unscrew? can we not unscrew? can you not unscrew? can they not unscrew?
Forma com V-ing
can I not be unscrewing? can you not be unscrewing? can she not be unscrewing? can we not be unscrewing? can you not be unscrewing? can they not be unscrewing?
Perfeito
can I not have unscrewed? can you not have unscrewed? can she not have unscrewed? can we not have unscrewed? can you not have unscrewed? can they not have unscrewed?
Perfeito com V-ing
can I not have been unscrewing? can you not have been unscrewing? can she not have been unscrewing? can we not have been unscrewing? can you not have been unscrewing? can they not have been unscrewing?