prepositions in Arabic How to translate: 1) to decide on the spot 2) to be on vacation 3) he's on my side (= supports me) 4) there was an error on my part (= I made an error) 5) a joke on someone 6) the light falls on the wall 7) to bite on arm / to be bitten by smth. 8) to turn on the left/right 9) to live on money. Thanks.