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I was just curious if there is a way to make the ~たい form polite? for example

```

    戦いたい - Want to fight
    
```

I was thinking possibly using the honorific form instead of the masu form
might be acceptable?

```

    お戦いになりたい
    
```
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2016-04-02T05:51:51.743
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2016-04-03T21:05:23.487
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question
conjugations honorifics politeness
Desire form verbs (~たい), is there a polite form?
I assume you mean the _honorific_ form, rather than the simple _polite_ form
(which can be achieved by just adding です after 戦いたい).

お戦いになりたい sounds odd in most cases, because ～たい itself is usually for a desire
_of your own_. Honorific expressions are for someone higher than you.

  * <https://japanese.stackexchange.com/a/3844/5010>
  * [Can たい and たがる be used for a 1st/2nd/3rd person's desire?](https://japanese.stackexchange.com/q/23860/5010)

The natural honorific version would be 「将軍は戦いたがっていらっしゃる」「将軍は戦いたがっておいでだ」 etc.
You can still use plain たい before other certain honorific expressions:
「将軍は戦いたいと考えていらっしゃる」, 「将軍は戦いたいと仰っている」.

As you can see in the second link above, there are cases where ～たい can be used
for 3rd party's desire. For example I think 「将軍がお戦いになりたい理由が分かりません」 (="I don't
understand the reason why General wants to fight") is not incorrect, although
I still feel this is slightly awkward.
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2016-04-02T07:12:32.543
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answer
My thought is as follows:  
There are two types of paradigm.  
たい is a adjective form that shows a state of a subjective will.  
たがる is a verb form that shows a state from an objective viewpoint.

```

     私は戦いたいです。　　　　　　　I want to fight.
     あなたは戦いたがっています。　　You want to fight.
    
     私は戦いたくありません。　　　　I don't want to fight.
     あなたは戦いたがっていません。　You don't want to fight.
    
     私は戦いたいですか。　　　　　　(impossible sentence)
     あなたは戦いたいですか。　　　　Do you want to fight?
     彼は戦いたがっていますか。　　　Does he want to fight?
    
```

Therefore,  
because to ask directly other person's will is rude as the honorific form, I
think たい is rarely used.
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answer