Strong’s Hebrew Lexicon:

Ask: 1245 baqash baw-kash’ a primitive root; to search out (by any method, specifically in worship or prayer); by implication, to strive after:–ask, beg, beseech, desire, enquire, get, make inquisition, procure, (make) request, require, seek (for). https://www.blueletterbible.org/lexicon/h1245/nkjv/wlc/0-1/

Seek: 1239 baqar baw-kar a primitive root; properly, to plough, or (generally) break forth, i.e. (figuratively) to inspect, admire, care for, consider:–(make) inquire (-ry), (make) search, seek out. https://www.blueletterbible.org/lexicon/h1239/nkjv/wlc/0-1/

Knock: 1849 daphaq daw-fak’ a primitive root; to knock; by analogy, to press severely:–beat, knock, overdrive. https://www.blueletterbible.org/lexicon/h1849/nkjv/wlc/0-1/