Zdravím Nepřihlášený host!

I´m sorry for (sth/doing sth).

I´m really sorry.

I´m awfully sorry.

I apologise.

Can/Could you...?

Would you mind (doing sth)?

Dou you think you could...?

Do you think you could possibly...?

Will you...?

I can´t really ...

I´m afraid I can´t ...