Grammar › Obligation › 〜ほうがいい
〜ほうがいい
The advice pattern: "you'd better / it's better to." One quirk trips everyone up — the affirmative takes the past form.
The short version
ほう means "side / option", so 〜ほうがいい is literally "the … option is good" — i.e. "you'd better …". The catch: to advise doing something, the verb takes its past た-form (食べたほうがいい). To advise not doing it, use the plain negative (食べないほうがいい).
食べる → 食べたほうがいい — you'd better eat (past form!)
食べないほうがいい — you'd better not eat
〜ないほうがいい — "better not to"
For steering someone away from an action, keep the verb plain-negative.
〜たほうがいい — "better to"
For advising an action, the verb goes into its past form — even though the advice is about the future.
長時間はやめたほうがいい。
You'd better quit the long sessions. (やめる → past やめた + ほうがいい)
手で守ったほうがいいですね。
You'd better protect yourself with your hands. (守る → past 守った + ほうがいい)
Watch out
Affirmative = past; negative = plain. It's 食べたほうがいい (do) but 食べないほうがいい (don't) — the negative side stays present. Using the plain present 食べるほうがいい shifts the meaning toward comparing options, not giving advice.
🗣 ほうがいい is stronger than it looks. It's real advice, not a light "maybe" — closer to "you really should". Casually, drop です and just say 〜たほうがいい(よ). You'll also see it written 〜た方がいい with the kanji 方.
Next: 〜なくてはいけない — must → · 〜なくてもいい → · All grammar
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