Usages of sikou
歯 に 歯垢 が ついて います。ha ni sikou ga tuite imasu.
There is plaque on my teeth.
歯科衛生士 が 歯垢 と 歯石 を 確認します。sikaeiseisi ga sikou to siseki wo kakuninsimasu.
The dental hygienist checks for plaque and tartar.
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“How do verb conjugations work in Japanese?”
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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