
Regular verb: knock - knocked - knocked
Simple form | V-ing form | 
| I'd knock you'd knock she'd knock we'd knock you'd knock they'd knock  | I'd be knocking you'd be knocking she'd be knocking we'd be knocking you'd be knocking they'd be knocking  | 
Perfect | V-ing perfect | 
| I would've knocked you would've knocked she would've knocked we would've knocked you would've knocked they would've knocked  | I would've been knocking you would've been knocking she would've been knocking we would've been knocking you would've been knocking they would've been knocking  | 
Simple form | V-ing form | 
| I wouldn't knock you wouldn't knock she wouldn't knock we wouldn't knock you wouldn't knock they wouldn't knock  | I wouldn't be knocking you wouldn't be knocking she wouldn't be knocking we wouldn't be knocking you wouldn't be knocking they wouldn't be knocking  | 
Perfect | V-ing perfect | 
| I wouldn't have knocked you wouldn't have knocked she wouldn't have knocked we wouldn't have knocked you wouldn't have knocked they wouldn't have knocked  | I wouldn't have been knocking you wouldn't have been knocking she wouldn't have been knocking we wouldn't have been knocking you wouldn't have been knocking they wouldn't have been knocking  | 
Simple form | V-ing form | 
| would I knock? would you knock? would she knock? would we knock? would you knock? would they knock?  | would I be knocking? would you be knocking? would she be knocking? would we be knocking? would you be knocking? would they be knocking?  | 
Perfect | V-ing perfect | 
| would I have knocked? would you have knocked? would she have knocked? would we have knocked? would you have knocked? would they have knocked?  | would I have been knocking? would you have been knocking? would she have been knocking? would we have been knocking? would you have been knocking? would they have been knocking?  | 
Simple form | V-ing form | 
| wouldn't I knock? wouldn't you knock? wouldn't she knock? wouldn't we knock? wouldn't you knock? wouldn't they knock?  | wouldn't I be knocking? wouldn't you be knocking? wouldn't she be knocking? wouldn't we be knocking? wouldn't you be knocking? wouldn't they be knocking?  | 
Perfect | V-ing perfect | 
| wouldn't I have knocked? wouldn't you have knocked? wouldn't she have knocked? wouldn't we have knocked? wouldn't you have knocked? wouldn't they have knocked?  | wouldn't I have been knocking? wouldn't you have been knocking? wouldn't she have been knocking? wouldn't we have been knocking? wouldn't you have been knocking? wouldn't they have been knocking?  |