Şimdiye kadar oraya varmalıydılar.
- They ought to have arrived there by this time.
By the time I reach the age of sixty-five, I will have worked for more than forty.
O zamana kadar yağmur durursa biz saat ikide başlayacağız.
- We will start at two o'clock if it has stopped raining by that time.
O zamana kadar çoktan ayrılmış olacağım.
- By that time I'll have already left.
I'll be an old man by the time you finish!.
... now going back to work tonight at the hospital for the first time since ...
... it was noticeable within a human lifespan. For the first time in all of human history, ...