How to use the inflection "やがる"?


> こんなくそみたいな帽子{ぼうし}かぶせやがって！
>
> "こんな仕事{しごと}させやがって！"
>
> "こんなまずいものを食{く}わせやがって！"
>
> "あいつは本当{ほんとう}に良{い}いものを作{つく}りやがる"

I was recently acquainted with the inflection "やがる," as illustrated in the
examples above. Would it be right to describe it as a 活用形 (inflection)? Can
anyone explain how to use it and what role it serves?




`やがる` is a verb since the endings it takes is the same as the other verbs:

> 食べやがる non-past  
>  食べやがった past  
>  食べやがれ imperative  
>  etc.

`やがる` attaches to stems; it is an affix that attaches to a verb and creates a
verb.

Its meaning is to add the first person's feeling that the act was done
disfavorably or turned out to be disfavorable to the first person. It is the
opposite of `-てくれる`, which expresses the first person's feeling that the act
was favorable. Unlike `-てくれる`, though, `やがる` is colloquial and mildly
insulting.

> 帽子を被せる  
>  'put a hat on someone' [Neutral]
>
> 帽子を被せてくれる  
>  'put a hat on someone' [Favorable]
>
> 帽子を被せやがる  
>  'put a hat on someone' [Disfavorable]

In your last example, the reason `やがる` is used despite the positive
connotation from `よいもの` is because the first person is expressing jealousy
(serious or not). From the point of view of the first person, it is not a good
thing that the other person made a good thing.

* * *

Traditional grammar confuses classification of words based on their meaning
and classification based on the (morphological) form. It considers whatever
word or morpheme that has the meaning comparable to the meanings expressed by
auxiliaries in western languages (such as modaility, etc.) as 助動詞 'auxiliary
verb'. However, parts of speech is a morphological (and syntactic) notion. It
is a classification of words and morphemes based on their forms. It has
nothing to do with the meaning. The traditional classification is
inappropriate.

Furthermore, in modern analysis of Japanese, there is no such thing as 活用形.
All there is is the verb stem, and an affix that attaches to it. What
traditional grammar calls 活用語尾, on which 活用形 manifests, is actually the
initial vowel of the affix (and/or some few sounds surrounding it). For
example, traditional grammar says that the negative form verb `書かない` consists
of the stem `書`, its 活用語尾 `か` and a 助動詞 `ない`. But notice how unsophisticated
and complicated that analysis is. In modern analysis, all there is is the verb
stem `kak-` and the negative affix `-anai` (which is itself an i-adjective).




`やがる` is a verb since the endings it takes is the same as the other verbs:

> 食べやがる non-past  
>  食べやがった past  
>  食べやがれ imperative  
>  etc.

`やがる` attaches to stems; it is an affix that attaches to a verb and creates a
verb.

Its meaning is to add the first person's feeling that the act was done
disfavorably or turned out to be disfavorable to the first person. It is the
opposite of `-てくれる`, which expresses the first person's feeling that the act
was favorable. Unlike `-てくれる`, though, `やがる` is colloquial and mildly
insulting.

> 帽子を被せる  
>  'put a hat on someone' [Neutral]
>
> 帽子を被せてくれる  
>  'put a hat on someone' [Favorable]
>
> 帽子を被せやがる  
>  'put a hat on someone' [Disfavorable]

In your last example, the reason `やがる` is used despite the positive
connotation from `よいもの` is because the first person is expressing jealousy
(serious or not). From the point of view of the first person, it is not a good
thing that the other person made a good thing.

* * *

Traditional grammar confuses classification of words based on their meaning
and classification based on the (morphological) form. It considers whatever
word or morpheme that has the meaning comparable to the meanings expressed by
auxiliaries in western languages (such as modaility, etc.) as 助動詞 'auxiliary
verb'. However, parts of speech is a morphological (and syntactic) notion. It
is a classification of words and morphemes based on their forms. It has
nothing to do with the meaning. The traditional classification is
inappropriate.

Furthermore, in modern analysis of Japanese, there is no such thing as 活用形.
All there is is the verb stem, and an affix that attaches to it. What
traditional grammar calls 活用語尾, on which 活用形 manifests, is actually the
initial vowel of the affix (and/or some few sounds surrounding it). For
example, traditional grammar says that the negative form verb `書かない` consists
of the stem `書`, its 活用語尾 `か` and a 助動詞 `ない`. But notice how unsophisticated
and complicated that analysis is. In modern analysis, all there is is the verb
stem `kak-` and the negative affix `-anai` (which is itself an i-adjective).

