Present Simple Past Simple

by-…gacha

Signal so’zlar: By 5 o’clock/Saturday

By that time
e.g. I had done my homework by 5 o’clock yesterday.
2. O’tgan zamondagi ish-harakat boshlanishidan avval tugatilgan ish-harakat.
a)before-oldin

Past Perfect + before + Past Simple

e.g. I had finished my work before my brother came.

Before+ Past Simple+ Past Perfect

e.g. Before my brother came I had finished my work.

Agar before dan keyin Past Perfect kelsa, unda gapning ma’nosi o’zgaradi. e.g. My brother came before I had finished my work (bu degani, ishimni qilib ulgurmasdan akam keldi. Yuqoridagi misollarda esa ishimni qilib bo’lganimdan so’ng degan ma’no anglashiladi)

b). after-…dan keyin