French language Q&A Forum

Not sure if this belongs here as another one of the meanings of être + passé or if it's just idiomatic, but I came across this variant in the J'adore nager listening excercise https://progress.lawlessfrench.com/my-languages/french/exercises/overview/629, and neither this lesson nor the other one Passer/se passer/se passer de - the different meanings of the verb "passer" in French, helped decode it. According to what my search turned up, it means "it's over", or "it's gone"? It does make sense with the context.

Hi there;

Can I spell out my difficulty with this?

The three sample sentences are (and I've re-ordered the clauses on one to make my point clear):

Depuis que j'ai quatre ans, je porte des lunettes.

Depuis que vous nous l'avez dit, nous le savons.

Depuis que je t'ai rencontré, ma vie a complètement changé.

In the first two examples, the second clause of each is in the present tense; why not in the third example?

Best wishes,

Hugh