I could speed you could speed he could speed we could speed you could speed they could speed
Forma com V-ing
I could be speeding you could be speeding he could be speeding we could be speeding you could be speeding they could be speeding
Perfeito
I could have sped you could have sped he could have sped we could have sped you could have sped they could have sped
Perfeito com V-ing
I could have been speeding you could have been speeding he could have been speeding we could have been speeding you could have been speeding they could have been speeding
Negação
Forma simple
I could not speed you could not speed he could not speed we could not speed you could not speed they could not speed
Forma com V-ing
I could not be speeding you could not be speeding he could not be speeding we could not be speeding you could not be speeding they could not be speeding
Perfeito
I could not have sped you could not have sped he could not have sped we could not have sped you could not have sped they could not have sped
Perfeito com V-ing
I could not have been speeding you could not have been speeding he could not have been speeding we could not have been speeding you could not have been speeding they could not have been speeding
Forma interrogativa
Forma simple
could I speed? could you speed? could he speed? could we speed? could you speed? could they speed?
Forma com V-ing
could I be speeding? could you be speeding? could he be speeding? could we be speeding? could you be speeding? could they be speeding?
Perfeito
could I have sped? could you have sped? could he have sped? could we have sped? could you have sped? could they have sped?
Perfeito com V-ing
could I have been speeding? could you have been speeding? could he have been speeding? could we have been speeding? could you have been speeding? could they have been speeding?
Forma interro-Negação
Forma simple
could I not speed? could you not speed? could he not speed? could we not speed? could you not speed? could they not speed?
Forma com V-ing
could I not be speeding? could you not be speeding? could he not be speeding? could we not be speeding? could you not be speeding? could they not be speeding?
Perfeito
could I not have sped? could you not have sped? could he not have sped? could we not have sped? could you not have sped? could they not have sped?
Perfeito com V-ing
could I not have been speeding? could you not have been speeding? could he not have been speeding? could we not have been speeding? could you not have been speeding? could they not have been speeding?