to be unable to, to find difficult (unpleasant, awkward, painful) to do
Verb ます stem +
This grammar point is used when a person wants to do something but cannot because of social, moral, or psychological constraints. It implies that the action is difficult, painful, or awkward to perform in a given situation.
Attach
その意見には賛成し
I am unable to agree with that opinion.
今は決め
I cannot decide right now.
そんなに悲しい映画は見
I find it difficult to watch such a sad movie.