Apart from the simple past tense described above, English verbs do not have synthetic (inflected) forms for particular tenses, aspects or moods. However, there are a number of periphrastic (multi-word) constructions with verb forms that serve to express tense-like or aspect-like meanings; these constructions are commonly described as representing certain verb tenses or aspects (in English language teaching they are often simply called tenses). For the usage of these forms, see below. More detail can be found in the article Uses of English verb forms.