The article is concerned with the problem of correlation of the homogeneity and the co-ordination in French that is essential to differentiate a simple sentence with the similar verb predicates of a complex sentence. The urgency of such problems is based on the similarity of these syntactic constructions due to the co-ordination link existing in both constructions. This fact doesn’t allow the grammarians to arrive at a common view on the nature of the two constructions. The author proves the influence of the verb predicate syntactic links with the other parts of the sentence on classifying the structure as a simple or a complex sentence. In the paper there have been studied the similar verb predicates in the extended and unextended sentences. In the extended sentences the author focuses on the form and place of a complement, on the presence or absence of the adverbial modifier. The verb predicate grammar form itself influences the differentiating the two structures. Thus, it has been concluded that the main distinctive feature of predicate homogeneity is the grammatical marker. There have been detected the supplementary distinctive feature of predicate homogeneity is the semantic aspect, the lexical meaning in particular. The treated analysis of the empiric material shows the dependence of determining the two syntactic units on the stylistic norms and the rhetorical mode. The most important finding of the research is that, contrary some scientists’ opinion, there is no reason to abandon the term of the similar verb predicates in French.