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.
花粉症になる
kafunshouninarucome down with hay feverN3expression
Example sentences2
大人になってから急に花粉症になる人もいる。
otona ni natte kara kyuu ni kafunshou ni naru hito mo iru.
Some people suddenly come down with hay fever as an adult. neutral
この歳になって、まさか花粉症になるとは思わなかったよ。
kono toshi ni natte, masaka kafunshou ni naru to wa omowanakatta yo.
At this age, I never imagined I'd come down with hay fever! casual