申もうし訳わけない

expression, i-adjective

thank you very much (for help, etc.)

Used to express deep gratitude when someone has gone out of their way to help, implying that the speaker feels unworthy of the kindness. Often followed by 気持ち or 思い.

• こんなに親しん切せつにしていただいて、申もうし訳わけないくらいです。

  You've been so kind that I feel almost undeserving; thank you very much.

• わざわざ来きていただいて、申もうし訳わけない気き持もちでいっぱいです。

  I'm filled with gratitude (and a sense of unworthiness) that you came all this way for me.