The correct sentence is "How long have they been controlling the institution?", using the present perfect continuous to ask about the duration of an action.
La frase correcta es "How long have they been controlling the institution?", usando el presente perfecto continuo para preguntar sobre la duración de una acción.
| Question | How long … the institution? |
|---|---|
| Title | 2418 |
| QType (0=kprim,1=mc,2=sc) | 2 |
| Q_1 | have they be controlling |
| Q_2 | have they been controlling |
| Q_3 | had they been controlled |
| Answers | 0 1 0 |
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