Can frequency adverbial be moved to the beginning of a sentence without inversion? thank you

The differences of adverbs of common frequency patterns mainly include never, rarely, sometimes, often, usually and always. When frequency adverbs are placed at the beginning of a sentence, there are several types:

1) When Never and less are at the beginning of a sentence, the following sentence components should be inverted.

She is seldom so happy. She has almost never been so happy.

I have never done such a stupid thing. I have never done such a stupid thing.

2) When expressing imperative and imperative mood, you can use always at the beginning of the sentence to form an imperative sentence, without inversion at this time.

Always remember this. Please always remember this.

Always be a good person. Be a good person.

3) Usually it can be used at the beginning of a sentence when it means general situation, that is, "at ordinary times". There are no modifiers in front, and there are no inverted sentences in the sentence.

I get up early. Usually I get up early.

He usually goes home by train, sometimes by plane. He usually goes home by train, sometimes by plane.

4) When expressing emphasis, you can use often at the beginning of the sentence, and generally use words such as quite and very, and the sentence is not inverted.

He is often late. He is often late.

I often go to bed after taking a shower.

5) It is often used at the beginning of a sentence, and the sentence is not inverted.

Sometimes my parents disagree with me. Sometimes my parents and I disagree.

Sometimes it rains for months on end. It will rain for several months.

Therefore, among the common adverbs of degree, only the negative words never and less are located at the beginning of the sentence, which causes inversion.