czas

The inevitable progression into the future with the passing of present and past events.

Қалай қолдану керек

The preposition 'do' (to/into/until) always takes the genitive case (e.g., 'do sklepu', 'do jutra'). It is the default preposition for going into buildings, countries, or cities. A common mistake is using 'na' when 'do' is required, or vice versa (e.g., you say 'do pracy' but 'na pocztę').