English verb conjugation
COULD WATCHDOG

Regular verb: watchdog - watchdoged - watchdoged

Affirmation

Simple form	V-ing form
I could watchdog you could watchdog she could watchdog we could watchdog you could watchdog they could watchdog	I could be watchdoging you could be watchdoging she could be watchdoging we could be watchdoging you could be watchdoging they could be watchdoging
Perfect	V-ing perfect
I could have watchdoged you could have watchdoged she could have watchdoged we could have watchdoged you could have watchdoged they could have watchdoged	I could have been watchdoging you could have been watchdoging she could have been watchdoging we could have been watchdoging you could have been watchdoging they could have been watchdoging

Negation

Simple form	V-ing form
I could not watchdog you could not watchdog she could not watchdog we could not watchdog you could not watchdog they could not watchdog	I could not be watchdoging you could not be watchdoging she could not be watchdoging we could not be watchdoging you could not be watchdoging they could not be watchdoging
Perfect	V-ing perfect
I could not have watchdoged you could not have watchdoged she could not have watchdoged we could not have watchdoged you could not have watchdoged they could not have watchdoged	I could not have been watchdoging you could not have been watchdoging she could not have been watchdoging we could not have been watchdoging you could not have been watchdoging they could not have been watchdoging

Interrogative form

Simple form	V-ing form
could I watchdog? could you watchdog? could she watchdog? could we watchdog? could you watchdog? could they watchdog?	could I be watchdoging? could you be watchdoging? could she be watchdoging? could we be watchdoging? could you be watchdoging? could they be watchdoging?
Perfect	V-ing perfect
could I have watchdoged? could you have watchdoged? could she have watchdoged? could we have watchdoged? could you have watchdoged? could they have watchdoged?	could I have been watchdoging? could you have been watchdoging? could she have been watchdoging? could we have been watchdoging? could you have been watchdoging? could they have been watchdoging?

Interro-negative form

Simple form	V-ing form
could I not watchdog? could you not watchdog? could she not watchdog? could we not watchdog? could you not watchdog? could they not watchdog?	could I not be watchdoging? could you not be watchdoging? could she not be watchdoging? could we not be watchdoging? could you not be watchdoging? could they not be watchdoging?
Perfect	V-ing perfect
could I not have watchdoged? could you not have watchdoged? could she not have watchdoged? could we not have watchdoged? could you not have watchdoged? could they not have watchdoged?	could I not have been watchdoging? could you not have been watchdoging? could she not have been watchdoging? could we not have been watchdoging? could you not have been watchdoging? could they not have been watchdoging?