N4 — 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.
顔をする
kaowosuruto make a certain face; to put on an expressionN4expression
Example sentences2
彼はいつもそういう顔をする人です。
kare wa itsumo sou iu kao o suru hito desu.
He's always the type to make that kind of face. neutral
何その困った顔をするの？
nani sono komatta kao o suru no?
Why are you making that troubled face? casual