Often to soften down the tone of the imperatives, the subjunctive and indicative negation are used to form negative imperatives. Imperatives can also be formed using subjunctives to give indirect commands to the third person and to formal second person. A peculiar feature of Hindi-Urdu is that it has imperatives in two tenses; present and the future tense. The present tense imperative gives command in the present and future imperative gives command for the future. Hindi-Urdu explicitly marks grammatical aspects and any verb can be put into the simple, habitual, perfective, and progressive aspects. Each aspect in turn can be conjugated into five different grammatical moods, imperative mood being one of them. In the table below, the verb करना "karnā" کرنا (to do) is conjugated into the imperative mood for all the four aspectual forms.