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.
どうしたらいい
doushitaraiiwhat one should doN4expression
Example sentences2
これ、どうしたらいいと思う？
kore, dou shitara ii to omou?
What do you think I should do about this? casual
もう道に迷ってしまって、どうしたらいいか分かりません。
mou michi ni mayotte shimatte, dou shitara ii ka wakarimasen.
I'm lost and don't know what I should do. neutral