Help with には and にとって


I need help understanding why にとって cannot be used in this circumstance:

> その仕事は私｛には/*にとって｝出来ない。 ( `*` denotes unacceptable)

This is what I read:

> にとって cannot be used when it marks an experiencer or agent

But I get confused when this sentence is acceptable:

> これは我々にとって無視できない問題だ。

Isn't `我々` an agent? `我々` is the one who is doing the ignoring right? So what
am I understanding wrongly?




`にとって` 'As from the point of view of ' is a sentence modifier. The sentence
has to be meaningful without it, and it implies that its truth depends on
whose point of view it is described from.

> これは(無視できない)問題だ  
>  'This is a(n) (unignorable) problem.'
>
> **我我にとって** 、これは(無視できない)問題だ  
>  'For us, this is a(n) (unignorable) problem.'
>
> これは、我我にとって、(無視できない)問題だ [`これは` can be moved to the front.]  
>  'Regarding this, from the point of view of us, it is a(n) (unignorable)
> problem.'

`に` in question here is a dative case marker, which optionally marks the
subject of the embedded clause of a potential verb.

> 我我がこれを無視する  
>  'We ignore this.'
>
> [我我{が/ **に** }これを無視]できる [`する` is deleted before `できる` due to the
> irregularity of potential form.]  
>  'It is possible that we ignore this.'
>
> これは、我我{が/ **に** }無視できる [`これは` can be topicalized and moved to the front.]  
>  'Regarding this, it is possible that we ignore it.'

As usual in Japanese, the subject can be omitted, and be understood
implicitly:

> これは、(我我{が/ **に** })無視できる  
>  'It is possible that we ignore this.'

Attaching `にとって` to this sentence does not work semantically because the
possibility is independent of the point of view.

> * 我我にとって、これは(我我{が/ **に** })無視できる  
>  'For us, it is possible that we ignore this.'




`にとって` 'As from the point of view of ' is a sentence modifier. The sentence
has to be meaningful without it, and it implies that its truth depends on
whose point of view it is described from.

> これは(無視できない)問題だ  
>  'This is a(n) (unignorable) problem.'
>
> **我我にとって** 、これは(無視できない)問題だ  
>  'For us, this is a(n) (unignorable) problem.'
>
> これは、我我にとって、(無視できない)問題だ [`これは` can be moved to the front.]  
>  'Regarding this, from the point of view of us, it is a(n) (unignorable)
> problem.'

`に` in question here is a dative case marker, which optionally marks the
subject of the embedded clause of a potential verb.

> 我我がこれを無視する  
>  'We ignore this.'
>
> [我我{が/ **に** }これを無視]できる [`する` is deleted before `できる` due to the
> irregularity of potential form.]  
>  'It is possible that we ignore this.'
>
> これは、我我{が/ **に** }無視できる [`これは` can be topicalized and moved to the front.]  
>  'Regarding this, it is possible that we ignore it.'

As usual in Japanese, the subject can be omitted, and be understood
implicitly:

> これは、(我我{が/ **に** })無視できる  
>  'It is possible that we ignore this.'

Attaching `にとって` to this sentence does not work semantically because the
possibility is independent of the point of view.

> * 我我にとって、これは(我我{が/ **に** })無視できる  
>  'For us, it is possible that we ignore this.'

