I could retest you could retest she could retest we could retest you could retest they could retest
Forma com V-ing
I could be retesting you could be retesting she could be retesting we could be retesting you could be retesting they could be retesting
Perfeito
I could have retested you could have retested she could have retested we could have retested you could have retested they could have retested
Perfeito com V-ing
I could have been retesting you could have been retesting she could have been retesting we could have been retesting you could have been retesting they could have been retesting
Negação
Forma simple
I could not retest you could not retest she could not retest we could not retest you could not retest they could not retest
Forma com V-ing
I could not be retesting you could not be retesting she could not be retesting we could not be retesting you could not be retesting they could not be retesting
Perfeito
I could not have retested you could not have retested she could not have retested we could not have retested you could not have retested they could not have retested
Perfeito com V-ing
I could not have been retesting you could not have been retesting she could not have been retesting we could not have been retesting you could not have been retesting they could not have been retesting
Forma interrogativa
Forma simple
could I retest? could you retest? could she retest? could we retest? could you retest? could they retest?
Forma com V-ing
could I be retesting? could you be retesting? could she be retesting? could we be retesting? could you be retesting? could they be retesting?
Perfeito
could I have retested? could you have retested? could she have retested? could we have retested? could you have retested? could they have retested?
Perfeito com V-ing
could I have been retesting? could you have been retesting? could she have been retesting? could we have been retesting? could you have been retesting? could they have been retesting?
Forma interro-Negação
Forma simple
could I not retest? could you not retest? could she not retest? could we not retest? could you not retest? could they not retest?
Forma com V-ing
could I not be retesting? could you not be retesting? could she not be retesting? could we not be retesting? could you not be retesting? could they not be retesting?
Perfeito
could I not have retested? could you not have retested? could she not have retested? could we not have retested? could you not have retested? could they not have retested?
Perfeito com V-ing
could I not have been retesting? could you not have been retesting? could she not have been retesting? could we not have been retesting? could you not have been retesting? could they not have been retesting?