Check whether the following situations apply.
- If the word at the beginning of a sentence is lowercase, is the noun registered in the dictionary in lowercase?
- If a letter that should be lowercase is uppercase in the translated text, is there a line feed (including Shift+Enter) immediately before the corresponding part in the source text?
If a word is registered in the dictionary, it is automatically replaced with the registered term prior to translation, so there may be cases where uppercase/lowercase letters are not used correctly.
Also, Shift+Enter line feeds are also considered to be sentence breaks, so any word immediately following a line feed will be translated uppercase.
Refer to "Text translation does not work well" for more information on sentence breaks.