Mrs Malaprop is not in Act II, save - thankfully! - for this delicious letter she writes to Sir Lucius:

"Sir - there is often a sudden incentive impulse in love, that has a greater induction than years of domestic combination: such was the commotion I felt at the first superfluous view of Sir Lucius O'Trigger. Female punctuation forbids me to say more; yet let me add, that it will give me joy infallible to find Sir Lucius worthy the last criterion of my affections."