Conjugação do verbo inglês
COULD ATTAINT

Verbo regular: attaint - attainted - attainted

Afirmação

Forma simple	Forma com V-ing
I could attaint you could attaint he could attaint we could attaint you could attaint they could attaint	I could be attainting you could be attainting he could be attainting we could be attainting you could be attainting they could be attainting
Perfeito	Perfeito com V-ing
I could have attainted you could have attainted he could have attainted we could have attainted you could have attainted they could have attainted	I could have been attainting you could have been attainting he could have been attainting we could have been attainting you could have been attainting they could have been attainting

Negação

Forma simple	Forma com V-ing
I couldn't attaint you couldn't attaint he couldn't attaint we couldn't attaint you couldn't attaint they couldn't attaint	I couldn't be attainting you couldn't be attainting he couldn't be attainting we couldn't be attainting you couldn't be attainting they couldn't be attainting
Perfeito	Perfeito com V-ing
I couldn't have attainted you couldn't have attainted he couldn't have attainted we couldn't have attainted you couldn't have attainted they couldn't have attainted	I couldn't have been attainting you couldn't have been attainting he couldn't have been attainting we couldn't have been attainting you couldn't have been attainting they couldn't have been attainting

Forma interrogativa

Forma simple	Forma com V-ing
could I attaint? could you attaint? could he attaint? could we attaint? could you attaint? could they attaint?	could I be attainting? could you be attainting? could he be attainting? could we be attainting? could you be attainting? could they be attainting?
Perfeito	Perfeito com V-ing
could I have attainted? could you have attainted? could he have attainted? could we have attainted? could you have attainted? could they have attainted?	could I have been attainting? could you have been attainting? could he have been attainting? could we have been attainting? could you have been attainting? could they have been attainting?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I attaint? couldn't you attaint? couldn't he attaint? couldn't we attaint? couldn't you attaint? couldn't they attaint?	couldn't I be attainting? couldn't you be attainting? couldn't he be attainting? couldn't we be attainting? couldn't you be attainting? couldn't they be attainting?
Perfeito	Perfeito com V-ing
couldn't I have attainted? couldn't you have attainted? couldn't he have attainted? couldn't we have attainted? couldn't you have attainted? couldn't they have attainted?	couldn't I have been attainting? couldn't you have been attainting? couldn't he have been attainting? couldn't we have been attainting? couldn't you have been attainting? couldn't they have been attainting?