Unionless and allied compositional connections are one way of constructing complex syntactic structures. Without them, speech is poor, because they provide more information and are able to contain from two or more sentences narrating about different events.
Complex sentences and their types
Depending on the number of parts, complex designs are divided into two and polynomial ones. In any of the options, the elements are connected either by an allied connection (which, in turn, is provided by the corresponding part of speech), or by a unionless one.
Depending on what types of relationships are present, complex formations create the following groups:
- A complex sentence with an all-union and allied creative connection: The sky darkened sharply, a distant peal was heard, and a wall of rain covered the ground, nailing dust and washing away city smog.
- Constructions combining elements with a subordinate connection, for example: The house we entered entered an oppressive state, but in this situation we did not have to choose .
- Complicated sentences with subordinate and union-free types of connections: No matter how he was in a hurry, his help was too late: another car took the wounded.
- In polynomial constructions, a subordinate, union-free and allied compositional connection can be used simultaneously. The next time the phone rang, my mother answered it, but only heard the voice of a robot reporting that she had an overdue loan.

It is important to be able to distinguish between complex sentences and constructions complicated by, for example, homogeneous predicates. As a rule, in the first case there are several grammatical foundations in the syntactic lexical unit, while in the second there will be one subject and several predicates.
Unionless constructions
In this form of lexical constructions, 2 simple sentences or more can be combined, which are interconnected by intonation and meaning. They can communicate with each other in the following relationships:
- Offers are related by listing. The evening gradually died away, the night fell to the ground, the moon began to rule the world.
- Designs in which elements are divided into several parts, two of which are opposed fragments. The weather was custom-made: the sky cleared of clouds, the sun shone brightly, a light breeze blew over his face, creating a slight coolness. In this non-union construction, the second fragment, consisting of 3 simple sentences related by enumerative intonation, explains its first part.
- The binary combination of simple elements into a polynomial complex structure, in which the parts are combined into semantic groups: the moon rose above the ridge, we did not immediately notice this: the haze concealed its radiance.
The union-free, as well as the allied compositional connection, in a single combination separates individual sentences from each other with punctuation marks.
Commas in unionless polynomial constructions
In complex compounds, their parts are separated by commas, semicolons, dashes, and colons. The comma and semicolon are used in the enumeration relationship:
- Parts are small in size and related to one another in meaning. After the thunderstorm, silence fell, followed by a slight whisper of rain.
- When parts are too common and not connected by a single meaning, a semicolon is put. Daisies and poppies covered the whole meadow; grasshoppers chattered down below.
Union-free constructions are most often used to transmit a large amount of information, which is not always related in meaning.
Separation marks in union-free formations
These characters are used in the following types of relations between the elements of the syntactic structure:
- Dash - when the second part is sharply opposed to the first, for example: We knew about his fears - no one knew about the willingness to die. (In a similar construction with a union-free, as well as an allied, writing connection between the parts, I want to put the “but” union).
- When the condition or time is narrated in the first part, a dash is placed between it and the second fragment. Rooster crowed - it's time to get up. In such proposals, the meaning of the unions "if" or "when" are appropriate.
- The same sign is put if the second part contains a conclusion about what was mentioned in the first. There was no strength to object - he silently agreed . In such allied constructions, “therefore” is usually inserted.
- When the second part of the sentence is compared and determined by what is narrated in the first. He makes a speech - he breathes hope into people. In these designs, you can add “as if” or “as if”.
- In sentences with explanatory connection and justification of the reason, a colon is used. I’ll tell you in essence: you can’t let your friends down.

Sentences with a union-free, as well as an allied, compositional connection between the parts are separated by signs depending on their semantic correlation.
Complicated designs
Suggestions of this type use a composing connection made with the help of compositional unions. Moreover, between their parts may be:
- Connecting relations, interconnected by unions and, yes, or by particles as well, also neither ... nor . Neither birds chirp, nor a mosquito squeaks, nor cicadas do not crack.
- In a separation relationship, unions are used that either, or particles are either ... or not ... not so much different. Either the wind brings an incomprehensible sound, then he himself is approaching us.
- Sentences, both with an all-union and an allied writing connection with comparative relations, indicate the identity of events, but in the second case with the use of unions, namely , that is. Everyone was glad of him, that is, that is what he read on their faces.
- Explanatory relations tend to use unions yes, but, a, particles, but, therefore , others. A blizzard raged outside the window, but it was warm near the fireplace in the living room.
Often, it is unions and particles that explain what connects simple sentences into a single complex construction.
Complicated offers with mixed modes of communication
Constructions, where at the same time there is a union-free and allied compositional connection, are encountered quite often. Separate blocks can be distinguished in them, each of which contains several simple sentences. Inside the blocks, some elements are connected with others in meaning and are separated by punctuation marks with or without unions. In a complex sentence with a union-free and union-like link, the line between them is the dividing signs, although the individual blocks may not be connected in meaning.