いたす
(Itasu)
The humble form of the verb 'to do' (suru), used to refer to one's own actions.
Connection rules
- +Replacement for する (suru)
- +Used when the speaker is being humble toward the listener
Examples
1.
ご指示どおりにいたします。

Go shiji doori ni itashi masu.
I will do as you instructed.
「Polite project confirmation」
2.
私がご案内いたします。

Watashi ga go annai itashi masu.
I will guide you.
「Hotel reception desk」
Practice
I will guide you to your seat.
お席までご案内___。
Romaji also accepted