1. Mammoths were big animals, bigger than elephants. (be)
2. Mammoths didn’t live 100 years ago. (not live)
3. Mammoths lived a long time ago. (live)
4. Mammoths didn’t eat meat. They ate grass. (not eat / eat)
5. They had two large tusks about three metres long. (have)
6. I paid by credit card. I didn’t pay cash. (pay / not pay)
7. He drank some milk. He didn’t drink any water. (drink / not drink)
8. She only spent a pound. She didn’t spend 3 pounds. (spend / not spend)
9. I saw some elephants. I didn’t see any lions. (see / not see)
10. They swam in the sea, but they didn’t swim in the lake. (swim / not swim)

Ներկա Ապագա

be were, was

eat ate

have had

pay paid

drink drank

spend spent

see saw

swim swam