Don't!: no hables, no comas
To tell someone not to do something, use no + the present subjunctive you met at level 46: no hables (don’t speak), no comas (don’t eat), no vengas (don’t come). It works for everyone: no hable (usted), no hablemos (let’s not), no hablen (ustedes), no habléis (vosotros). In Argentina, vos uses the tú form: no hables.
- No me mientas.Don't lie to me.
- No vayas.Don't go.