Şimdiye kadar oraya varmalıydılar.
- They ought to have arrived there by this time.
O zamana kadar yağmur durursa biz saat ikide başlayacağız.
- We will start at two o'clock if it has stopped raining by that time.
Onlar o zamana kadar on yıl evliler.
- They had been married for ten years by that time.
... but on an evolutionary time scale, they're very short. ...
... And it's impossible to monitor all of them at the same time. ...