✨ Basic Meaning
🎯 Primary Function
📋 Grammar Structure
🎭 Usage Contexts
Can be used in formal contexts, especially when discussing deliberate attempts or critical moments (e.g., a negotiation about to break down).
Frequently used in informal conversation to describe personal attempts or immediate situations.
Common in written language, including literature, news articles, and formal reports.
Very common in spoken Japanese.
💡 Common Applications
📌 Important Points
⚠️ Common Mistakes
🏛️ Cultural Context
🔍 Subtle Differences
📝 Conjugation Notes
The verb before とする must be in the Volitional form (意志形 – ishi-kei). – Group 1 verbs: Change the final う-sound syllable to the お-sound row and add う (e.g., 飲む -> 飲もう, 行く -> 行こう). – Group 2 verbs: Add よう (e.g., 食べる -> 食べよう, 見る -> 見よう). – Irregular verbs: する -> しよう, くる -> こよう.
🔊 Pronunciation Tips
Pay attention to the long vowel sound in the Volitional form (e.g., のもう, たべよう). とする is pronounced “to suru”.
🧠 Memory Tips
Think of 「よう」 as expressing “will” or “intention”, and 「とする」 as “to make oneself do” (attempt) or “to move towards doing” (imminence). Imagine pushing a heavy door (attempt) or a train just beginning to roll (imminence).

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