| A | B |
|---|
| When are these expressions used for present tense? | To describe an action that began at some time in the past and continues in the present |
| How long have you been in Paris? | Depuis quand êtes-cous à Paris? |
| I have been working here for 5 years. | Je travaille ici depuis cinq ans. OR Il y a, voila, or Ca fait cinq ans que je travaille ici. |
| When are these expressions used for imperfect tense? | To describe an action that began at some time in the past and was still happening or in effect at a given moment in the past when something else happened. |
| He had been working for two hours when the telephone rang. | Il y avait deux heures qu'il travaillait quand le téléphone a sonné. |
| If the time construction involves a date, what can be used? | only depuis |
