| A word that ends with either "-iru" or "-eru": | Group II verbs |
| kuru: | the verb |
| A word that ends with "suru": | the verb |
| A word that ends with "-u": | Group I verbs |
| A word that ends with "da": | the copula or a combination of a noun and the copula |
| A word that ends with a vowel and "-i": | adjectives |