O zamana kadar bütün dükkanları kapalı buldum.
- I found all the shops closed by that 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.
Şimdiye kadar oraya varmalıydılar.
- They ought to have arrived there by this time.
... sorts of data collected over a period of time investigating ...
... What will people look back on when they look back on our time 200 or 250 years ago, from ...