One of the important things to know about Spanish grammar is that it has many more grammatical endings, or inflections, than English does, although not nearly as many as the ancient Latin language from which it developed, many of whose endings have been lost. The difficulty of learning Spanish, therefore, lies somewhere between those of the other two. Thus, Spanish retains many Latin verbal inflections, making the use of subject pronouns unnecessary, but the entire case system has disappeared. Like all languages, Spanish is also full of colorful expressions.