could attaint
Verbo regular: attaint - attainted- attainted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could attaint
you could attaint
she could attaint
we could attaint
you could attaint
they could attaint 	I could be attainting
you could be attainting
she could be attainting
we could be attainting
you could be attainting
they could be attainting	I could have attainted
you could have attainted
she 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
she 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 	Perfeito 	Perfeito com V-ing 	
I could not attaint
you could not attaint
she could not attaint
we could not attaint
you could not attaint
they could not attaint 	I could not be attainting
you could not be attainting
she could not be attainting
we could not be attainting
you could not be attainting
they could not be attainting	I could not have attainted
you could not have attainted
she could not have attainted
we could not have attainted
you could not have attainted
they could not have attainted	I could not have been attainting
you could not have been attainting
she could not have been attainting
we could not have been attainting
you could not have been attainting
they could not have been attainting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I attaint?
could you attaint?
could she attaint?
could we attaint?
could you attaint?
could they attaint? 	could I be attainting?
could you be attainting?
could she be attainting?
could we be attainting?
could you be attainting?
could they be attainting? 	could I have attainted?
could you have attainted?
could she 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 she 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 	Perfeito 	Perfeito com V-ing 	
could I not attaint?
could you not attaint?
could she not attaint?
could we not attaint?
could you not attaint?
could they not attaint? 	could I not be attainting?
could you not be attainting?
could she not be attainting?
could we not be attainting?
could you not be attainting?
could they not be attainting? 	could I not have attainted?
could you not have attainted?
could she not have attainted?
could we not have attainted?
could you not have attainted?
could they not have attainted? 	could I not have been attainting?
could you not have been attainting?
could she not have been attainting?
could we not have been attainting?
could you not have been attainting?
could they not have been attainting?