Edit:
To respect the feelings of our Serbian comrades I would like to point out that this is not representative of the protests at large.
I am literally just trying to say: look at this freak I found. The normal libs are the ones carrying the bloody hand print sign from the ZLF. It looks similar to this. In the pic above it has a QR code. The Opposition in general are attempting to co-opt this protest movement.
There’s a few reasons to have signs in English. Palestine protests in the west have English signs because they started off and are still powered by international students/communities.
There’s also lots of Palestinians where I live who don’t speak the local language fluently yet and thus communicate a lot in English.