Affirmation, negation and imperative

1. Affirmation
         a) Without specific non-manual marking
         b) Affirmative headnod
         c) Affirmative signs
2. Negation
         a) Headshake
         b) Headshake and negative sign
                   b.1 Sentence negation
                   b.2 Signs incorporating negation
3. Imperative
         a) Basic form
         b) Alternative forms for command expression

We also find the simultaneous use of the headshake movement together with a negative sign, which may be carried out in two ways. The first is the absolute negation, "no". It is usually placed after the negated element, or at the end of the sentence.

    "Parents aren't invited, only students."
    "Tonight I won't go out with you, I'm tired."