It's time to mix and match the formulas we've talked about. Sigrid mixes and matches them to talk about stuff she can't or doesn't want to do herself. She invites you to do the same.

This segment lays out the building blocks of a passive causative construction. We also compare and contrast causative constructions with other similar constructions. Sigrid uses the expression "to mix and match," which means putting different things together in different ways.

Sigrid introduces passive causative constructions, which combine causal verbs and the passive voice. We use them all the time in everyday conversation when we focus on the object rather than the subject.

Sigrid has lost a couple of important items and is trying to think where they might be. In this part, she has lost her car key. She uses plenty of modal verbs to tell her story, including modal verbs expressing probability.