Flag "since" used with a duration instead of a point in time.

[hippietrail]

This one is only common among non-native English speakers, particularly common among those for whom German is their native language.

I have lived here since two years. → for two years

Often, perhaps always, "since" can be replaced with "for". Alternatively the writer can change the duration to a point in time but the software probably can't do this without AI?

I have lived here since two years ago.
I have lived here since 2023.