I should watchdog you should watchdog he should watchdog we should watchdog you should watchdog they should watchdog
V-ing form
I should be watchdoging you should be watchdoging he should be watchdoging we should be watchdoging you should be watchdoging they should be watchdoging
Perfect
I should have watchdoged you should have watchdoged he should have watchdoged we should have watchdoged you should have watchdoged they should have watchdoged
V-ing perfect
I should have been watchdoging you should have been watchdoging he should have been watchdoging we should have been watchdoging you should have been watchdoging they should have been watchdoging
Negation
Simple form
I should not watchdog you should not watchdog he should not watchdog we should not watchdog you should not watchdog they should not watchdog
V-ing form
I should not be watchdoging you should not be watchdoging he should not be watchdoging we should not be watchdoging you should not be watchdoging they should not be watchdoging
Perfect
I should not have watchdoged you should not have watchdoged he should not have watchdoged we should not have watchdoged you should not have watchdoged they should not have watchdoged
V-ing perfect
I should not have been watchdoging you should not have been watchdoging he should not have been watchdoging we should not have been watchdoging you should not have been watchdoging they should not have been watchdoging
Interrogative form
Simple form
should I watchdog? should you watchdog? should he watchdog? should we watchdog? should you watchdog? should they watchdog?
V-ing form
should I be watchdoging? should you be watchdoging? should he be watchdoging? should we be watchdoging? should you be watchdoging? should they be watchdoging?
Perfect
should I have watchdoged? should you have watchdoged? should he have watchdoged? should we have watchdoged? should you have watchdoged? should they have watchdoged?
V-ing perfect
should I have been watchdoging? should you have been watchdoging? should he have been watchdoging? should we have been watchdoging? should you have been watchdoging? should they have been watchdoging?
Interro-negative form
Simple form
should I not watchdog? should you not watchdog? should he not watchdog? should we not watchdog? should you not watchdog? should they not watchdog?
V-ing form
should I not be watchdoging? should you not be watchdoging? should he not be watchdoging? should we not be watchdoging? should you not be watchdoging? should they not be watchdoging?
Perfect
should I not have watchdoged? should you not have watchdoged? should he not have watchdoged? should we not have watchdoged? should you not have watchdoged? should they not have watchdoged?
V-ing perfect
should I not have been watchdoging? should you not have been watchdoging? should he not have been watchdoging? should we not have been watchdoging? should you not have been watchdoging? should they not have been watchdoging?