What's the meaning of the sentence?

Experts. What do they know?

It's not that at all, Sire. You use it all the time with not a thought given to how or why. Now you just have to put your considerable brain towards figuring out those hows and whys.

I must admit that this one form which has no, hmmmmmm ... or little connection to irrealis puzzles me as a subjunctive. I know that it looks like other non irrealis subjunctive forms but hmmmmmm, ... ?????

Golly, you changed my spelling. But I meant to write loth. I think loth and loath are interchangeable, at least in this country, and I prefer the former, since the latter too closely resembles loathe, a different kettle of fish entirely.

It's late here, so I may return to the subject of the subjunctive tomorrow.

My bad, McTag. Live and learn. It's also a variant over thisaways.

I'm trusting Mac that you're right

I looked up "subjunctive" then immediately forgot

"When two or more words are combine together and form a sentence"
Sentence is basic unit of language which complete a thought.
The meaning full sentence contain verb subject
There rare a different types of sentence like simple sentence, complex sentence,
compound sentence etc.