How does the grammar for this work? 『分かってはいた』 Can someone break down the grammar of this, what it means, and help me understand when it is used please?

What is the difference? In なにどしの方なのですか？ is なにどし just 何年？ and if so, what is the difference between that and なんねん?

What does this mean? What does the かけます in 床に掃除機をかけます mean and how is it applied to the sentence?

How do I say immersive in Japanese? I want to say immersive but not in the VR sense but more in the sense of, an immersive experience, like in the sense of a good game that gets you really immersed.

Is this natural? 停電すべきはずがあったけど I want to say, "I should've had a power outage but"

What kind of grammar is this? (13歳未満の方はプレイすることを) 禁じられております What does the られております mean?

読み方はどうやって？ 新しいタブで開く あく？ひらく？

What is the difference between these two? 「とは」と「というのは」 Can you explain the grammatical difference and have example sentences please?

What does these mean? 走って逃げる and 逃げて走る Hopefully you can give example sentences too?