could prosper
Verbo regular: prosper - prospered- prospered

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could prosper
you could prosper
she could prosper
we could prosper
you could prosper
they could prosper 	I could be prospering
you could be prospering
she could be prospering
we could be prospering
you could be prospering
they could be prospering	I could have prospered
you could have prospered
she could have prospered
we could have prospered
you could have prospered
they could have prospered	I could have been prospering
you could have been prospering
she could have been prospering
we could have been prospering
you could have been prospering
they could have been prospering	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not prosper
you could not prosper
she could not prosper
we could not prosper
you could not prosper
they could not prosper 	I could not be prospering
you could not be prospering
she could not be prospering
we could not be prospering
you could not be prospering
they could not be prospering	I could not have prospered
you could not have prospered
she could not have prospered
we could not have prospered
you could not have prospered
they could not have prospered	I could not have been prospering
you could not have been prospering
she could not have been prospering
we could not have been prospering
you could not have been prospering
they could not have been prospering	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I prosper?
could you prosper?
could she prosper?
could we prosper?
could you prosper?
could they prosper? 	could I be prospering?
could you be prospering?
could she be prospering?
could we be prospering?
could you be prospering?
could they be prospering? 	could I have prospered?
could you have prospered?
could she have prospered?
could we have prospered?
could you have prospered?
could they have prospered? 	could I have been prospering?
could you have been prospering?
could she have been prospering?
could we have been prospering?
could you have been prospering?
could they have been prospering? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not prosper?
could you not prosper?
could she not prosper?
could we not prosper?
could you not prosper?
could they not prosper? 	could I not be prospering?
could you not be prospering?
could she not be prospering?
could we not be prospering?
could you not be prospering?
could they not be prospering? 	could I not have prospered?
could you not have prospered?
could she not have prospered?
could we not have prospered?
could you not have prospered?
could they not have prospered? 	could I not have been prospering?
could you not have been prospering?
could she not have been prospering?
could we not have been prospering?
could you not have been prospering?
could they not have been prospering?