2 Read and complete the rules. RULES 1 To form the past simple of regular verbs we add '_ / -ed to the verb. 2 We use didn't + verb in the 2 form.

1 To form the past simple of regular verbs, we add -d or -ed to the verb.

Examples: live — lived, play — played, visit — visited.

2 We use didn't + the base form of the verb in negative sentences.

Example: I didn't watch TV yesterday. We do not say didn't watched, because after didn't the verb stays in its first form.

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