1. I last talked to him was one year ago

-> I haven't talked to him for one year

2. Nancy hasn't come here since 1999

-> Nancy last came here was in 1999

3. We haven't gone to a concert for ages

-> We last went to a concert were ages ago

4. Sarah hasn't seen her friends since she left for the US

-> Sarah last saw her friends was when she left for the US

5. They have used these machines at least five years

-> These machines have been used at least five years

6. Someone broke his windows last night

-> His windows were broken last night

1. I haven't talked to him for 1 year

2. Nancy last came here in 1990

3. We last went to a concert ages ago

4. Sarah last saw her friends when she left for the US

5. These machines have been used for at least 5 years

6. His windows were broken last night