
Verbo regular: knock - knocked - knocked
Presente | Presente continuo | Pretérito | Pretérito continuo | 
|  do I knock? do you knock? does she knock? do we knock? do you knock? do they knock?  |  am I knocking? are you knocking? is she knocking? are we knocking? are you knocking? are they knocking?  | did I knock? did you knock? did she knock? did we knock? did you knock? did they knock?  |  was I knocking? were you knocking? was she knocking? were we knocking? were you knocking? were they knocking?  | 
Presente perfecto | Presente perfecto continuo | Pluscuamperfecto | Pluscuamperfecto continuo | 
|  have I knocked? have you knocked? has she knocked? have we knocked? have you knocked? have they knocked?  |  have I been knocking? have you been knocking? has she been knocking? have we been knocking? have you been knocking? have they been knocking?  | had I knocked? had you knocked? had she knocked? had we knocked? had you knocked? had they knocked?  | had I been knocking? had you been knocking? had she been knocking? had we been knocking? had you been knocking? had they been knocking?  | 
Futuro simple | Futuro continuo | Futuro perfecto | Futuro perfecto contínuo | 
|  will I knock? will you knock? will she knock? will we knock? will you knock? will they knock?  |  will I be knocking? will you be knocking? will she be knocking? will we be knocking? will you be knocking? will they be knocking?  |  will I have knocked? will you have knocked? will she have knocked? will we have knocked? will you have knocked? will they have knocked?  |  will I have been knocking? will you have been knocking? will she have been knocking? will we have been knocking? will you have been knocking? will they have been knocking?  | 
Presente | Presente continuo | Passado | Passado continuo | 
|  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?  |  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?  | 
Infinitivo | Imperativo | 
Infinitivo | Imperativo | ||
| to knock | - - -  | 
Presente | Passado | ||
| knocking | knocked |