They involve the union of several sentences through coordination links or a juxtaposition pause (which is a non-nexus union of contiguous equifunctional elements).
Sentences composed by coordination present phrases united under conditions of equality: "Boys and girls play soccer", "Old men sing and dance". It should be noted that these phrases can be linked with or without links.
As we say, these sentences that create a compound sentence have the main seal that they can function on their own in an absolutely autonomous way.
The main characteristic of these sentences is that they are on the same syntactic plane, that is, they have the same rank and, in addition, they are linked by a link or nexus. Let's look at three concrete examples:
"My team won the game, but it is not the champion."
"I got home early and made dinner."
"My friend studies and his cousin works."
There are several possibilities for coordinated compound sentences, depending on the type of link that joins them. On the one hand, copulative (The friend plays and his cousin reads it). There is also the dilemma (Give me the money or go). The compound distributive sentence (It's raining here, it's sunny there). The opponent (I won the game but was not satisfied). Finally, the compound explanatory sentence (He is a very young worker, that is, he has no experience).
- Coordination compound sentence: two (or more) sentences of the same entity (none is more "important" or level higher than the other) are joined by connectors (links) that forge explicit nature of this correlation. The links are independent of both sentences, and have the same entity and behavior as if they were independent. Therefore, we speak of links (and sentences) of a copulative, adverse (distributive), disjunctive or explanatory type.
- Sentence composed by subordination: a sentence (or proposition) is integrated into another, performing in it a grammatical function (subject, name complement, attribute, preposition term, circumstantial complement), that is, the secondary sentence acts in it in the same way as a syntagm. Therefore, the sentences that act as Suj., CD, Atr., CN or Term of preposition, characteristic functions of the noun phrase, are called substantive or complementary sentences (or propositions); those that act as a complement to a name, a typical function of an adjectival phrase, are called adjectival or relative sentences and, finally, it is included under the name of adverbial or circumstantial sentences for all those that perform the function of circumstantial complement, a habitual function of the adverbial phrase. Inside the OO.
- Juxtaposed sentences: it is said that two or more sentences are juxtaposed when there is no link between them, despite which we can interpret that the relationship between them is of the same type as between the coordinates or the subordinates.
