English conjunctions (and, or, but mainly these three, too many are unrealistic), what do they mainly connect? (Preposition? Verb? Sentence?)

The three conjunctions of and, or, and but are called equivalent conjunctions, alternative conjunctions, and transitional conjunctions respectively. They can be used to connect any similar words, phrases, and sentences. Let's take and as an example:

1. Connect various parts of speech that are juxtaposed, such as:

Two and two makes four. Two plus two makes four. (numeral)

Read slowly and loudly. Read slowly and loudly. (adverb)

She is beautiful and cute. She is beautiful and cute. (adjective)

He went there to and fro several times. He went back and forth there several times. (Skit adverb)

My father and mother are both workers. My father and mother are both workers.

Try and shoot the bird. (Used between go, come, try, write or see and other verbs to express purpose)

We talked and talked. We talked, talked, talked endlessly. (A repeated action used between two verbs with the same meaning)

We ate and drank to our full content. We ate and drank to our full content. (Connecting other verbs to express simultaneous or subsequent actions)

2. Connect various parallel components, such as:

He is at home and does his homework at the desk. She Doing homework at home. (Coordinating predicate)

He went out of the door and into the dark. She went out of the door and into the dark. (Coordinated adverbial, prepositional phrase)

The boy at home and in bed caught cold. The boy at home and in bed caught cold. (Parallel postpositioned attributive)

3. Connect parallel sentences. Such as:

I did not answer, and he, too, kept silent. I did not answer, and he, too, kept silent.

Go at once and you will see her. Go at once and you will see her.

The cure for bad teaching is good teachers, and good teachers cost money.

All through yesterday crowds have been arriving and by midnight thousands of people packed the square.

You could only really tell the effects of the disease in the long term, and five years wasn't long enough. 5 years is not long enough.

The same goes for or and but.

John or you are in Class Two. John or you are in Class Two. (noun)

Two or three miles (distance) (numeral)

late last night or rather early this morning late last night or rather early this morning . (adjective)

He cannot read or write. He can neither read nor write. (verb)

Make haste, or (else) you'll be late. Hurry up, or it will be too late. (Sentence)

No one but she saw the prowler. No one but she saw the prowler. (Pronoun)

It never rains but it pours. It thunders but it pours. (Sentence)

There is no doubt but right will prevail. There is no doubt but right will prevail. There is no doubt that justice will prevail. (sentence)

There never is a tax law presented but someone will oppose it. (sentence)