Answer:
Strong verbs - slid, ran, saw, knew
Weak verbs - introduced, noticed, walking, laughed
Explanation:
Weak verbs are verbs that require us to add an ending to their root to indicate person, number, tense, and mood. In the past simple tense, these verbs will have an ending <em>-ed </em>or <em>-d.</em>
Unlike them, strong verbs don't require these endings. Instead, in the past simple tense, the vowel their root contains changes.
Based on this information, we can conclude that examples of strong verbs are <em>slid </em>(from<em> to slide), </em><em>ran </em><em>(to run), </em><em>saw </em><em>(to see), </em><em>and knew </em><em>(to know).</em> Examples of weak verbs are <em>introduced </em><em>(to introduce), </em><em>noticed</em><em> (to notice), </em><em>walking </em><em>(to walking),</em><em> and laughed </em><em>(to laugh).</em>
