I could watchdog you could watchdog he could watchdog we could watchdog you could watchdog they could watchdog
Forma com V-ing
I could be watchdoging you could be watchdoging he could be watchdoging we could be watchdoging you could be watchdoging they could be watchdoging
Perfeito
I could have watchdoged you could have watchdoged he could have watchdoged we could have watchdoged you could have watchdoged they could have watchdoged
Perfeito com V-ing
I could have been watchdoging you could have been watchdoging he could have been watchdoging we could have been watchdoging you could have been watchdoging they could have been watchdoging
Negação
Forma simple
I could not watchdog you could not watchdog he could not watchdog we could not watchdog you could not watchdog they could not watchdog
Forma com V-ing
I could not be watchdoging you could not be watchdoging he could not be watchdoging we could not be watchdoging you could not be watchdoging they could not be watchdoging
Perfeito
I could not have watchdoged you could not have watchdoged he could not have watchdoged we could not have watchdoged you could not have watchdoged they could not have watchdoged
Perfeito com V-ing
I could not have been watchdoging you could not have been watchdoging he could not have been watchdoging we could not have been watchdoging you could not have been watchdoging they could not have been watchdoging
Forma interrogativa
Forma simple
could I watchdog? could you watchdog? could he watchdog? could we watchdog? could you watchdog? could they watchdog?
Forma com V-ing
could I be watchdoging? could you be watchdoging? could he be watchdoging? could we be watchdoging? could you be watchdoging? could they be watchdoging?
Perfeito
could I have watchdoged? could you have watchdoged? could he have watchdoged? could we have watchdoged? could you have watchdoged? could they have watchdoged?
Perfeito com V-ing
could I have been watchdoging? could you have been watchdoging? could he have been watchdoging? could we have been watchdoging? could you have been watchdoging? could they have been watchdoging?
Forma interro-Negação
Forma simple
could I not watchdog? could you not watchdog? could he not watchdog? could we not watchdog? could you not watchdog? could they not watchdog?
Forma com V-ing
could I not be watchdoging? could you not be watchdoging? could he not be watchdoging? could we not be watchdoging? could you not be watchdoging? could they not be watchdoging?
Perfeito
could I not have watchdoged? could you not have watchdoged? could he not have watchdoged? could we not have watchdoged? could you not have watchdoged? could they not have watchdoged?
Perfeito com V-ing
could I not have been watchdoging? could you not have been watchdoging? could he not have been watchdoging? could we not have been watchdoging? could you not have been watchdoging? could they not have been watchdoging?