When before the union as a comma in sentences, and when - no

1. In what situations is a comma set?
2. Do I need a comma?
3. Compound alliances and the word like

To put or not to put a comma before the union as? It seems to be a simple question. From school, we learned that a comma is placed if this union is part of a comparative turnover. Is this statement true? Or does this rule have exceptions? If they are, then what? In order not to get into an awkward situation because of commas, let's see when they really need to be put in front of this union, and in what moments it is not necessary to do this at all.

In what situations is a comma set?

First, we will analyze more simple examples when you need to put a punctuation mark in front of the union. Remember them easy, they are quite simple, and there are few such cases.

1. If the union joins together separate fragments of a complex sentence, a comma is used. It is easy to learn and remember, because in such cases it is simply impossible to do without a punctuation mark. For example: We recalled with pleasure how several years ago our class visited the zoo.
2. If the union is an integral part of the introductory words in the sentence, then we must also put a comma. There are few such phrases in Russian, but they are often used colloquially. For example: I was late for school today, as always.
3. If the union is used in a comparative turnover, it is separated with a comma from both sides. Recognize these phrases is easy. They have the meaning of "like" and it is impossible to find any other meanings in order not to change the meaning of the sentence. For example: His eyes are as blue as the sky on a clear day.

It should be noted here another interesting point, if such a turnover is in the middle of a sentence , then it should not be allocated with commas. Separated in this sentence, the whole structure, which is suitable for the meaning. For example: In the room Vadim, evil as hell, measured the room with steps. In this case, the definition of evil is added to the comparative turnover.

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Such a distinction is made, because this part of the sentence has an indivisible semantic connection . If you do not put a punctuation mark like this, then we will understand this part of the text differently. The presence in this situation of the word and this rule does not change. This part of the proposal is still a comparative turnover and acts as a circumstance. Consequently, such a part along with the word is marked with a punctuation mark.

For example: At school, I, like all children, are treated well.

4. If the above comparative turnover is in the middle of a sentence , it is allocated with commas from two sides: at the beginning and at the end of this construction. For example: At the same time it was hot, like in the stove that day.

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Do I need a comma?

Now let's look at situations where the punctuation mark is not required. Confusion often arises with them, although there is nothing complicated here. If you look into these moments, you will not have any particular difficulties. By the way, such cases, when the comma is not needed, are also found in Russian a little, so there is no need to memorize a large amount of information.

1. If the union is between the subject and the predicate, and instead you can put a dash, then a comma is not needed here. The meaning of the phrase should not change. For example: He is like a hawk.
2. If this union is part of a phraseological unit. Recall that this concept in the Russian language are indivisible language stable phrases. For example: The brothers were unlike heaven and earth.
3. If the union in continuation denotes the circumstance of the course of action, then a comma is not put before it. For example: The flag fluttered like a bird. In these situations, the phrase with the union can be replaced by an adverb ( like a bird ) or use a noun in the instrumental case ( bird ). Often, it is this moment that causes people the most doubt. Sometimes it is very difficult to distinguish comparison from the circumstances of the course of action.
4. When the phrase with the union is an indivisible part of the predicate. Here a sentence without it will not have the necessary meaning. In such cases, the comma is not set. For example: The girl turned red like a tomato.
5. If before the union there are words: absolutely, completely, almost, exactly, exactly, it seems, simply, and also a particle is not, then do not put a comma in front of it. This is a simple rule, but it is often forgotten. For example: They looked at each other not as friends.

Compound alliances and the word like

Sometimes the word as is part of a compound union or turnover , for example: as and so on. Of course, they do not put a comma here, because in such cases this word is not a union. For example: Since he appeared, silence has disappeared. The above rules and examples to them, when you put or not put a comma in sentences, will help you not to be mistaken when writing texts. A person’s literacy is always in his own hands, so much depends on attentiveness and knowledge.