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IOS · Grammar Adventure

Phrase · Clause · Sentence

📖 IOS's Three Journeys · The Grammar Trio
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Phrase

Like IOS in cat form: Looks like a whole, but has no "subject + verb" core to stand alone.

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Clause

Like IOS in human form but still wandering: Has a core, but cannot stand alone yet.

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Sentence

Like IOS after finding his master: Has a core, and can express a complete idea independently.

💡 Important: Sentences will NOT end with a period, so punctuation won't give away the answer!

Choose Your Difficulty

Pick a journey for IOS — each level gets trickier!

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Cat Form

Clear, straightforward items. Spot the basic difference.

EASY
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Wandering Human

More items, mixed types. Watch out for subordinate clauses.

MEDIUM
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After Master

Tricky look-alikes and traps. Only true masters pass!

HARD