Let's look at the sentence "Change to passive: "They built the bridge in 1990."" and understand why it matters. Good grammar isn't about memorising rules — it's about understanding patterns. Here's a calm, clear breakdown.
The bridge was built in 1990.
Step 1: Object becomes subject: the bridge
Step 2: Verb: was built (past passive)
Step 3: Agent (they) can be omitted
This exercise tests your understanding of grammar. The rule helps you form grammatically correct sentences that sound natural to native speakers.
❌ Mistake 1: Confusing similar grammar rules that apply in different contexts.
❌ Mistake 2: Applying the rule inconsistently across similar sentence structures.
❌ Mistake 3: Overlooking exceptions to the general rule.
The bridge was built in 1990.
This exercise tests your understanding of grammar. The rule helps you form grammatically correct sentences that sound natural to native speakers.