dociekać in English:

She hired a private detective to inquire into the case.

I am writing to inquire whether you have any positions available.

Let's inquire about our hotel reservations.

May I inquire why you wish to speak to him?

He says he will inquire into the matter.

They came to the hospital to inquire after me.

"What's the problem?" the doctor inquired.

"Why are you doing that?" he inquired.

If you like languages, why don't you inquire about French classes in your area? [+ question word] Vronsky inquired whether the picture was for sale.

Did you inquire as to whether you should leave?

I will inquire about the matter after I return home.

He had to inquire into the record of the event.

before we draw any conclusions we should enquire into all the circumstances of the accident