Japanese Grammar – I made the children play inside because it started raining. 🇯🇵

あめ が ふり はじめた の で、こどもたち を いえ の なか で（あそぶ）____。

In this sentence, "あそばせた" is the causative form of the verb "あそぶ" (to play). The causative form is used when you want to indicate that someone made or let someone else do something. Here, you want to express that you made the children play inside because it started raining.

– Verb stem 語幹 (ごかん): あそ（ぶ）
– To form the causative of a verb belonging to Group 1 (う-verbs): change the final う sound of the verb stem to あ sound + せる/せます
– あそぶ becomes あそばせる（あそばせます in polite form）
– In past tense: あそばせる becomes あそばせた (short form for casual past)

### Romanized Characters:
あめ が ふり はじめた の で、こどもたち を いえ の なか で あそばせた。
Ame ga furi hajimeta no de, kodomotachi wo ie no naka de asobaseta.

### Explanation of Causative Form:
1. Verb Group: あそぶ (asobu) is a Group 1 / う-verb.
2. Causative Formation: Change the final ぶ (bu) to ば (ba) + せる (seru) to form あそばせる (asobaseru).
3. Past Tense: あそばせる (asobaseru) becomes あそばせた (asobaseta) in past tense.
4. Meaning: This form indicates that the speaker made the children play inside.

This grammar structure is used to convey that the action was directed or compelled by someone, in this case, you made the children play inside due to the rain.

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