could retest
Verbo regular: retest - retested- retested

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could retest
you could retest
he could retest
we could retest
you could retest
they could retest 	I could be retesting
you could be retesting
he could be retesting
we could be retesting
you could be retesting
they could be retesting	I could have retested
you could have retested
he could have retested
we could have retested
you could have retested
they could have retested	I could have been retesting
you could have been retesting
he could have been retesting
we could have been retesting
you could have been retesting
they could have been retesting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't retest
you couldn't retest
he couldn't retest
we couldn't retest
you couldn't retest
they couldn't retest 	I couldn't be retesting
you couldn't be retesting
he couldn't be retesting
we couldn't be retesting
you couldn't be retesting
they couldn't be retesting	I couldn't have retested
you couldn't have retested
he couldn't have retested
we couldn't have retested
you couldn't have retested
they couldn't have retested	I couldn't have been retesting
you couldn't have been retesting
he couldn't have been retesting
we couldn't have been retesting
you couldn't have been retesting
they couldn't have been retesting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I retest?
could you retest?
could he retest?
could we retest?
could you retest?
could they retest? 	could I be retesting?
could you be retesting?
could he be retesting?
could we be retesting?
could you be retesting?
could they be retesting? 	could I have retested?
could you have retested?
could he have retested?
could we have retested?
could you have retested?
could they have retested? 	could I have been retesting?
could you have been retesting?
could he have been retesting?
could we have been retesting?
could you have been retesting?
could they have been retesting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I retest?
couldn't you retest?
couldn't he retest?
couldn't we retest?
couldn't you retest?
couldn't they retest? 	couldn't I be retesting?
couldn't you be retesting?
couldn't he be retesting?
couldn't we be retesting?
couldn't you be retesting?
couldn't they be retesting? 	couldn't I have retested?
couldn't you have retested?
couldn't he have retested?
couldn't we have retested?
couldn't you have retested?
couldn't they have retested? 	couldn't I have been retesting?
couldn't you have been retesting?
couldn't he have been retesting?
couldn't we have been retesting?
couldn't you have been retesting?
couldn't they have been retesting?