〜ても・～でも・〜てもいい

About

Attach も to the て form of a verb or adjective to express "even if (verb/adjective)".

E.g. 食たべる → 食たべて → 食たべても

E.g. おいしい → おいしくて → おいしくても

でも can be attached to nouns and な-adjectives to achieve the same effect.

E.g. きれいでも

～ても/でも can be combined with いい ("good") to ask for/give permission to do something or to ask if something is okay.

E.g. 食たべる → 食たべて → 食たべてもいい

E.g. 学生がくせいでもいい

Summary

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  Attach も to the て form of い-adjectives or verbs to express "even if (adjective/verb)"

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  Attach でも to a noun/な-adjective to express "even (noun/な-adjective)"

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  Attach いい to ても or でも to ask/give permission, or ask if/say that something is okay