Clausal negation refers to simple negation of a full clause. The language accomplishes this with an affix, as in Kolyma Yukaghir: <i>met numö-ge <b>el-</b>jaqa-te-je</i> ‘1sg house-LOC <b>Neg</b>-achieve-FUT-INTR.1sg’ for ‘I will not reach the house’ (Dryer 2008). The prefix <b><i>el-</i></b> negates the clause. 

<br><br><b>Reference</b><br>
Dryer, Matthew S. 2008. Negative Morphemes.
In Haspelmath et al. (2008), chapter 112. Available online at <a href=â€http://wals.info/feature/112â€> http://wals.info/feature/112</a href>. 
