かな

Particle (used in conversation only) (Intermediate 90)

A sentence-final particle that indicates a self-addressed question or a question addressed to an in-group member.

Equivalent: I wonder if ~

今週末には何をしようかな
I wonder what I should do this weekend.
この問題、君に分かるかな
Can you figure out this problem?
今日は何曜日だったかな
I wonder what day of the week today is.
来学期から日本語を始めようかな
I wonder if I should start Japanese next semester.
日本での生活はどうかな
I wonder what life is like in Japan.
今日の晩ご飯は何かな
I wonder what today's dinner will be.
アパートの家賃は高いかな
I wonder if the apartment rent is high.
先生はお元気かな
I wonder if my teacher is in good health.
音楽会の切符があるんだけど、君は行けるかな
There is a concert ticket, but I wonder if you can go.

Formation

(i) {V/Vvolitional} informal かな  
  {話す/話した/話そう} かな I wonder if someone talks/if someone talked/if I should talk
(ii) Adjective い informal かな  
  {大きい/大きかった} かな I wonder if something is/was big
(iii) {Adjective な stem/Noun} {Ø/だった} かな  
  静か{Ø/だった} かな I wonder if something is/was quiet
  先生{Ø/だった} かな I wonder if someone is/was a teacher
(iv) Wh-word {Ø/だった} かな  
  いつ{Ø/だった} かな I wonder when something is/was

Notes