English Grammar

We are asked to identify which of the sentences are grammatically correct. Let’s analyze each sentence:
(i) "I woke up from sleep."
This sentence is grammatically correct. "Woke up" is the correct past tense of "wake up." (ii) "I wok up from sleep."
This sentence is incorrect. "Wok" is a misspelling of "woke." (iii) "I was woken up from sleep."
This sentence is grammatically correct. "Was woken" is the correct passive voice form of "wake up." (iv) "I was wokened up from sleep."
This sentence is incorrect. The word "wokened" is not a correct form of "wake." Conclusion: The grammatically correct sentences are (i) and (iii). Final Answer: