long time no see
I haven't seen you for a long time. How have you been doing?
It's been a long time (since I last saw you)./ Long time no see.
I'm sorry to bother you so early in the morning.
Itadakimasu. (polite expression used before commencing a meal.)
We're always grateful to you
sorry for bothering you all the time ; thank you for accomodating me
Thank you for everything you have done for me.