We moeten een onderscheid maken tussen regelmatige en onregelmatige werkwoorden: (1.) Regelmatige werkwoorden een vorm van (to have) in de tegenwoordige tijd gevolgd door een infinitiefvorm eindigend op -ED (voltooid deelwoord) Bv. I have worked.
(2.) Onregelmatige werkwoorden een vorm van (to have) in de tegenwoordige tijd gevolgd door het onregelmatige voltooid deelwoord (de derde in het rijtje in een woordenboek of lijst) Bv. I have seen. |
| Onderwerp: | Positieve zin | Vraagzin | Negatieve zin |
| I | have worked. | Have I worked? | haven't worked. |
| you ("jij") | have worked. | Have you worked? | haven't worked. |
| he/she/it | has worked. | Has she worked? | hasn't worked. |
| we | have worked. | Have we worked? | haven't worked. |
| you ("jullie") | have worked. | Have you worked? | haven't worked. |
| they | have worked. | Have they worked? | haven't worked. |
| Onderwerp: | Positieve zin | Vraagzin | Negatieve zin |
| I | have seen. | Have I seen? | haven't seen. |
| you ("jij") | have seen. | Have you seen? | haven't seen. |
| he/she/it | has seen. | Has she seen? | hasn't seen. |
| we | have seen. | Have we seen? | haven't seen. |
| you ("jullie") | have seen. | Have you seen? | haven't seen. |
| they | have seen. | Have they seen? | haven't seen. |
