supposed to happen

Translations
предполагается произойти
The event was supposed to happen last week.
Мероприятие должно было произойти на прошлой неделе.
Definitions
A phrase indicating an expectation or belief that a certain event or outcome is intended or anticipated to occur.
Words
supposed

adjective
предполагаемый
to

preposition
чтобы
happen

verb
произойти