Really understanding a language has not been an easy task for those who have spent their lives studying them. However, other disciplines have emerged from grammar that have been created little by little for the understanding of each language, also bearing in mind that due to the differences in each language, the study will not be the same in all cases.
Morphosyntax studies the meaning of a sentence through the elements that compose it and the rules that must be followed in the language.
Morphology is only responsible for evaluating the form of each linguistic element of the sentence, indicating the type of word to which it corresponds (verb, noun, adjective, among others). The syntax for its part determines the function of each element within that sentence and finally, when evaluating the sentence from its morphosyntax, its meaning can be established, taking into account both perspectives.
Thus, morphosyntax corresponds to a branch of grammar, which unites morphology and syntax, in a situation where individual studies, that is, studying only the morphology of a sentence or only its syntax, is possible, but there are cases in which it will be necessary only to study both (together) and not separately.
Many linguists establish that the relationship between morphology and syntax is so close that it is impossible to separate them and that when studying a language, it should be done by unifying both disciplines, through morphosyntax. An example of this is the study of a polysynthetic language, where a single "word" is translated into a complete sentence.
On the other hand, morphosyntax is postulated as an individual solution, since it fulfills the function of studying the "inseparable" morphology and syntax.
It is said that the existence of morphology is incontestable, that of syntax as well and that of morphosyntax is the result of the fact that there are certain grammatical aspects that cannot be studied entirely from the morphological or syntactic perspective.
In this sense, there are those who indicate that beyond unifying both studies of the language, morphosyntax functions as an essential companion of both, which complements the understanding of the object under study.
