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Usages of denwa wo suru
私 は 母 に 電話 を します。watasi ha haha ni denwa wo simasu.
I call my mother.
明日 先生 に 電話 を します。asita sensei ni denwa wo simasu.
I will call the teacher tomorrow.
昨日 は 母 に 電話 を しました。kinou ha haha ni denwa wo simasita.
I called my mother yesterday.
明日 ホテル に 電話 を します。asita hoteru ni denwa wo simasu.
I will call the hotel tomorrow.
私 は 警察 に 電話 を します。watasi ha keisatu ni denwa wo simasu.
I call the police.
後 で 先生 に 電話 を します。ato de sensei ni denwa wo simasu.
I will call the teacher later.
今 は 忙しい です から、 後 で 電話 を します。ima ha isogasii desu kara, ato de denwa wo simasu.
I am busy now, so I will call later.
緊急 の 場合 は 警察 に 電話 を して ください。kinkyuu no baai ha keisatu ni denwa wo site kudasai.
In case of an emergency, please call the police.
不在票 を 見て、 宅配便 の 会社 に 電話 を しました。huzaihyou wo mite, takuhaibin no kaisya ni denwa wo simasita.
I saw the missed-delivery slip and called the courier company.
Test yourself: What does denwa wo suru mean?
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Japanese verbs conjugate based on tense, politeness, and mood. For example, the polite present form adds ‑ます to the verb stem, while the past tense uses ‑ました. Unlike English, Japanese verbs don't change based on the subject — the same form works for "I", "you", and "they".
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