〜だろう

Pattern: 〜だろう
Level: N4
Reading: だろう
Meaning: Probably, I think
Attaches to: Dictionary form, Noun+だ, な-adjective+だ
Nuance & register: Expresses conjecture or assumption, less certain than 〜はずだ.
Example: 明日は晴れるだろう。 It will probably be sunny tomorrow.