<em>Subject-verb agreement</em><em> is when the </em><em>subject</em><em> and the </em><em>verb</em><em> agree in </em><em>number/plurality </em><em>and </em><em>Subject-verb disagreement</em><em> is just the opposite of it. That means it is when the</em><em> subject</em><em> and the </em><em>verb</em><em> does not agree in </em><em>number/plurality</em><em>. </em>
Example:
<em>"I are playing "</em>
<em>We was supposed to put "am" instead of "are".</em>
<em>In this sentence, we used plural noun with a singular verb.</em>
