N3 — outside your level filter
Is said whole, with nothing composed onto it and takes no だ/です, so there are no forms to conjugate.
頭痛がする
zutsuugasuruhave a headacheN3expression
Example sentences2
寝不足のせいか、朝から頭痛がする。
nebusoku no sei ka, asa kara zutsuu ga suru.
Maybe because of lack of sleep, I've had a headache since this morning. neutral
ちょっと頭痛がするから、先に寝るね。
chotto zutsuu ga suru kara, saki ni neru ne.
I've got a bit of a headache, so I'm going to bed first. casual