Angol: leírnátok a 'to regard' változatait és a hozzá kapcsolódó kifejezéseket? (pl. as regards sthing)

as regards -

There is no problem as regards the financial arrangements.

in/with regard to

I am writing to you with regard to your letter of 15 March.

in this/that regard

The union is the largest in the country and in this/that regard is best placed to serve its members.