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.
連絡をつける
renrakuwotsukerumake contactN3expression
Example sentences1
早めに連絡をつけるほうがいいと思うよ。
hayame ni renraku o tsukeru hou ga ii to omou yo.
I think you should make contact early. casual