Translation of "verbykom" into English

Ek beveel aan dat jy dit streel as hy verbykom, jy het dit nodig

I advise you to stroke it as he passes, you have a most urgent need of some.

Ons sal langs die pad wegkruip, en wanneer Paulus verbykom, sal ons hom doodmaak!’

We will hide along the road, and when Paul passes by, we will kill him!’