| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] two years | 999 |
|
| 2 | [was/were] [adv] two | 467 |
|
| 3 | [was/were] two years | 75 |
|
| 4 | [was/were] [adv] years | 15 |
|
