Japanese - Ask questions thread

Basically if you have a question about the language, ask it and fellow 4channers might see it and answer it for you.

To start it off. When an animate object (iru) dies, is it considered inanimate(aru)?

I've noticed, in a few anime, that characters will sometimes have an 'end of phrase marker' such as Suiseiseki' infamous "desu" or Naruto's "-ttebayo" While these addendum's often have, in their own way, individual meanings I've noticed that they are often superfluous when used to the extent these characters use them. So my question is:

Does the usage of these phrases, or any other phrase as they are used by these and other such characters, have an otaku/wee word for them? Or even a general Japanese word for them? I don't think they have a word for them in English

The only lead that I have gotten was the google search 'inflectional ending japanese', but that doesn't seem to be what I'm looking for.

¯\(°-°)/¯