でしょうか

でしょうか
expression
I wonder if ...?; might it be that ...? (polite)
1. a polite sentence-ending expression used to soften a question, express uncertainty, or make a gentle inquiry — roughly 'I wonder if...', 'could it be that...', or 'might it be...?'
Formed from the polite copula でしょう (conjectural/polite form of だ) plus the question particle か. Used to phrase a question less directly than simple ですか, giving it a more reflective or deferential tone. Appropriate when softening a potentially intrusive question, asking about something uncertain, or politely requesting information from someone of equal or higher status.
(あめ)でしょうか。
I wonder if it will rain.
こちらでよろしいでしょうか。
Would this be all right?
明日(あした)会議(かいぎ)何時(なんじ)からでしょうか。
What time does tomorrow's meeting start?
(おそ)()りますが、お名前(なまえ)(おし)えていただけますでしょうか。
Excuse me, would you mind telling me your name?

Composed of the polite conjectural copula でしょう plus the question particle か. Adds a softening, tentative, or deferential nuance to a polite question compared with plain ですか.

USAGE:

  • Follows nouns, na-adjectives (bare stem), i-adjectives (plain form), and plain-form verbs: 学生(がくせい)でしょうか、(しず)かでしょうか、(たか)いでしょうか、()るでしょうか.
  • Commonly used in polite service encounters (shops, hotels, customer service) and formal conversation.
  • Can convey tentativeness about one's own guess (e.g., (あめ)でしょうか — 'I wonder if it'll rain'), or be a polite inquiry directed to the listener (e.g., 何時(なんじ)でしょうか — 'What time is it, may I ask?').
  • Double-polite ~ますでしょうか (as in いただけますでしょうか) is widely used in business keigo despite being technically redundant; it is accepted in service industry speech.

COMMON COLLOCATIONS:

  • よろしいでしょうか: 'is it all right?' — polite confirmation
  • いかがでしょうか: 'how about it?, how would that be?' — polite inquiry / suggestion
  • 都合(つごう)いかがでしょうか: 'how does your schedule look?'
  • いただけますでしょうか: 'could I have / could you ... (for me)?' — very polite request
  • どうでしょうか: 'what do you think?, how about it?'

SIMILAR WORDS:

  • ですか: plain polite question — more direct, used in most everyday polite speech.
  • だろうか: the plain-speech equivalent, used in soliloquy, written Japanese, or casual conversation among equals.
  • でしょう (statement): without か, でしょう alone expresses conjecture or seeks agreement ('right?, don't you think?'), not a question.

REGISTER:
Polite (丁寧(ていねい)). Common in service industry, business conversation, and formal speech. In casual conversation with friends or family, speakers typically use plain ですか, plain だろうか, or simply rising intonation on a plain statement.