In line with the idea that certain sounds may coincide with particular emotions, researchers have found that words may ...

Next, for the verbs that end with the vowel "I" in the syllable just before MASU, there are two patterns. One pattern is to change MASU to RO. "To get up," OKIMASU, becomes OKIRO (Get up!).

For example, TABEMASU (to eat), becomes TABERU. Next, if a verb has the vowel I in its syllable just before MASU, there are two patterns for this conjugation. For one, you remove MASU, and add RU.