| коли́ | things happening at the same time: the imperfective | Коли́ ми йшли до університе́ту, пішо́в дощ. | As we were walking to the university, it started to rain. |
| коли́ | one thing after another: the perfective | Коли́ ми прийшли́, уро́к уже́ поча́вся. | When we arrived, the class had already started. |
| коли́ | about the future: the future tense | Коли́ ти при́йдеш, ми пообі́даємо. | When you come, we'll have lunch. |
| якщо́ | a real condition; the main clause often opens with то | Якщо́ ви ви́вчите слова́, то ле́гко зрозумі́єте текст. | If you learn the words, you'll understand the text easily. |
| якщо́ | a general truth: the present tense | Якщо́ йде дощ, ми сидимо́ вдо́ма. | If it rains, we stay at home. |
| якби́ | an unreal condition: the past tense and би | Якби́ я мав час, я пої́хав би до Льво́ва. | If I had time, I would go to Lviv. |
| Trap | after якщо́ about the future, the future tense | Якщо́ за́втра пі́де дощ, ми зали́шимося вдо́ма. | If it rains tomorrow, we'll stay at home. |
| Trap | би in the main clause too | Якби́ я знав, я прийшо́в би. | If I'd known, I would have come. |