A <i>yes-no</i> question is a question that can be answered by either <i>yes</i> or <i>no</i>.

<br><br>A 'yes' value indicates that the language has a clitic used to indicate that the sentence is a <i>yes-no</i> question. That is, the clitic must attach to some host but what it attaches to is variable. For example, in Fyem, the question clitic <i>=a</i> attaches to the last word of the sentence, as in <i>taa won aré=n<b>=a</b></i> ‘3sg.PEF wash clothes=DEF=Q’ for ‘Did she wash the clothes?’ (Dryer 2008).  

<br><br><b>Glossing convention:</b> Yes-No question clitics will be glossed =Q. 
<br><br><b>Reference</b><br>Dryer, Matthew S. 2008. Polar Questions.
In Haspelmath et al., chapter 116. Available online at <a href=â€http://wals.info/feature/116â€> http://wals.info/feature/116</a href>.	
