~たらどう (why don't you)
grammar10 sentences
The suggestion pattern [verb-past]+たらどう, literally 'how would it be if you X-ed?', used for 'why don't you X / how about X?' Softer than direct advice, leaving the listener free to decline. Appears bare (~たらどう), with plain copula (~たらどうだ), with polite copula (~たらどうですか), or with tentative (~たらどうでしょうか) — same suggestion grammar at rising politeness.
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