～たら いかがですか JLPT N4 Polite
〜tara ikaga desu ka
Making polite suggestions; 'how about if', 'what if', 'it would be good if'.
Polite, formal suggestion - "how about...?" - much more formal than たらいい/ばいい, used with someone you should be respectful toward.
Formation
Verb-casual, past + たら いかがですか, い-Adjective + かったら いかがですか, な-Adjective + だったら いかがですか, Noun + だったら いかがですか
Explanation
The ～たら いかがですか grammar point is used to make polite suggestions, ask for opinions, or imply that something would be good or desirable if the condition is met. The formation differs depending on whether it is used with a verb, い-adjective, な-adjective, or noun.
Example sentences
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How about going to the library?
Toshokan ni ittara ikaga desu ka.
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How about wearing a cardigan if it's cold?
Samukattara kaadigan wo kiru no wa ikaga desu ka.
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What if you turn on the light if the room is dark?
Heya ga kurakattara shoumei wo tsukeru no wa ikaga desu ka.
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How about asking others if it's your own opinion?
Jibun no iken dattara tanin ni kiku no wa ikaga desu ka.