The modal verbs, which are defective verbs – they have only a present indicative form and (in some cases) a preterite, lacking nonfinite forms (infinitives, participles, gerunds), imperatives, and subjunctives (although some uses of the preterites are sometimes identified as subjunctives).
English has a number of modal verbs which generally do not inflect (most of them are surviving preterite-present verbs), and so have only a single form, used as a finite verb with subjects of all persons and numbers.
The simple perfect has been replaced by the compound perfect in most of the Romanian varieties; it is commonly used in the Oltenian vernacular (graiul oltenesc) to denote recent actions that still have an impact on the present situation: Mâncai (I have eaten).