I-adjectives, na-adjectives, and nouns can also be used with phrases いいですand かまいません to express permission and concession. They indicate that there is no problem about the state or condition expressed by Aい, Aな, and N.
さくぶんは みじかくても いいです。
It is all right if the composition is short.
ハイキングの 場所は きょねんと おなじでも いいです。
It is all right if we go hiking to the same place where we went last year.
ハイキングの 日は 土よう日でも いいです。
It is all right if we go hiking on Saturday.
