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居るべき
iru beki
should be
そこには椅子が居るべきだ。
There should be a chair there.
formal
Indicates that something ought to exist or be present in a certain place or situation.
この部屋には机が居るべきです。
There should be a desk in this room.
彼の立場には理解が居るべきだ。
There should be understanding in his position.
Used in formal or written contexts to express an expectation of existence or presence. Often paired with あるべき for inanimate objects.
Related Phrases
Pro Tip
Formal vs. Casual Equivalents
For animate beings in formal contexts, use 居るべき. For inanimate objects, use あるべき. In casual speech, switch to いるはず or あるはず respectively.
Gold Rule
Normative Expectation
居るべき expresses not just a prediction but a moral or practical expectation that something should exist or be present in a given context. It carries a sense of 'ought to be' rather than 'might be'.
Word Origin
Composed of 居る (iru, 'to be' for animate beings) and べき (beki, auxiliary verb indicating obligation or appropriateness). The phrase combines the existential verb for living things with the moral/obligatory auxiliary to express a normative expectation of presence.
Usage Notes
1. Primarily used in formal writing or serious contexts. In casual speech, あるべき (for inanimate objects) or いるはず (for animate beings) are more common. 2. Often used in negative constructions to express disapproval or criticism (e.g., 彼の態度には理解が居るべきではない). 3. The negative form 居るべきではない implies that something is missing or inappropriate in a way that violates norms or expectations.
Word Breakdown
居る
to be (for animate beings)
verbべき
should/ought to (indicating obligation or appropriateness)
auxiliary verb和英辞典