What it means
かもしれません expresses uncertainty and means that something might be true or may happen. It shows that the speaker thinks the possibility is real but does not feel certain. It is the polite form and can follow a noun, a na-adjective, an i-adjective, or a verb in its plain form. The familiar counterpart is かもしれない.
Usage note
With nouns and na-adjectives, do not normally insert だ before かもしれない or かもしれません. Use forms such as 学生かもしれません and 静かかもしれません. The ending itself marks the level of politeness, while the word before it remains in plain form.
How to use it
田中さんは先生かもしれません。
Mr. Tanaka might be a teacher.
この町は静かかもしれません。
This town might be quiet.
今日は寒いかもしれません。
Today might be cold.
来週、雨が降るかもしれません。
It might rain next week.
田中さんは先生かもしれない。
Mr. Tanaka might be a teacher.
この町は静かかもしれない。
This town might be quiet.
今日は寒いかもしれない。
Today might be cold.
来週、雨が降るかもしれない。
It might rain next week.