Content interrogatives are used to ask the addressee to fill in some specific missing information. In LIS, as in many languages, they contain a specialized set of interrogative words or phrases. Since in English most of these interrogatives contain the morpheme wh-, content interrogatives are sometimes called wh-interrogatives.
An example of direct content interrogative in LIS is provided below.
wh
A: ix2 buy what
B: ice_cream
‘What did you buy?’ ‘Ice cream.’
Below, we show an example of indirect content interrogative.
wh
ix3 3ask1 buy ix1 what ix1
‘He asked me what I bought.’