write + not + had better not do
kakanai hou ga ii
had better not do; should not (advice)
meaning: had better not write
そのこと、まだ言わないほうがいいよ。
sono koto, mada iwanai hou ga ii yo.
You had better not say that yet. casual
熱があるなら、今日は出かけないほうがいい。
netsu ga aru nara, kyou wa dekakenai hou ga ii.
If you have a fever, you had better not go out today. neutral