1. Formality
   1. Casual
      1. Usage
         1. Close friends
         2. Family
         3. Fictional media like manga or anime
      2. Slang
         1. Heavy
      3. Colloquialism
         1. Heavy
      4. Gender Specific
         1. Heavy
      5. Directness: Very direct
      6. Notes
         1. Not for use with distant friends or the general public
         2. Usually results in sentences and words being as short as possible
   2. Polite
      1. Usage
         1. General public
         2. Distant friends
         3. Co-Workers
      2. Slang
         1. Few
      3. Colloquialism
         1. Moderate
      4. Gender Specific
         1. Few
      5. Directness: Less Direct
      6. Notes
         1. Can be considered offensive for family or close friends
         2. Sentences and words tend to get longer
            1. the un-abbreviated wording is generally used
   3. Humble/Honorific
      1. Usage
         1. Job positions that work with public
            1. Communication with those job positions
         2. Superiors
         3. Government Officials
         4. Royalty Members
      2. Colloquialism
         1. None
      3. Slang
         1. None
      4. Gender Specific
         1. None
      5. Directness: Very indirect
      6. Notes
         1. Can be considered offensive or sarcastic where not appropriate
         2. Sentences and words tend to get very long
            1. The un-abbreviated wording is used
            2. Extra honorific prefixes and suffixes are added
            3. Additional honorific verb conjugations are added
            4. The longer version of words are used where possible
         3. The sentence is usually re-worded to sound as most indirect as possible
2. State of being
   1. だ
      1. Conjugation
         1. Present/Future
         2. Positive
      2. Formality
         1. Casual and direct
      3. Gender
         1. Neutral but generally used by males
         2. Females usually use the implied version
      4. Usage
         1. Clause + だ
         2. Clause
      5. Notes
         1. Usage is optional, is implied if left out
      6. Examples
         1. 魚は好きだ
            1. I like fish
         2. これはペン
            1. This is a pen
   2. だった
      1. Conjugation
         1. Past
         2. Positive
      2. Formality
         1. Casual
      3. Gender
         1. Neutral
      4. Usage
         1. Clause + だった
      5. Notes
         1. N/A
      6. Examples
         1. 魚は好きだった
            1. I liked fish
         2. これはペンだった
            1. This was a pen
   3. じゃない
      1. Conjugation
         1. Present/Future
         2. Negative
      2. Formality
         1. Casual
      3. Gender
         1. Neutral
      4. Usage
         1. Clause + じゃない
      5. Notes
         1. Grammatically works like an い-Adjective
      6. Examples
         1. 魚は好きじゃない
            1. I don't like fish
         2. これはペンじゃない
            1. This isn't a pen
   4. じゃなかった
      1. Conjugation
         1. Past
         2. Negative
      2. Formality
         1. Casual
      3. Gender
         1. Neutral
      4. Usage
         1. Clause + じゃなかった
            1. Conjugated the end of じゃない to い-Adjective past becoming じゃなかった
      5. Notes
         1. N/A
      6. Examples
         1. 魚は好きじゃなかった
            1. I didn't like fish
         2. これはペンじゃなかった
            1. This wasn't a pen