| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adv] [prep] [num] years | 148 |
|
| 2 | be [prep] [num] years ' | 59 |
|
| 3 | [adv] [prep] [num] years ' | 59 |
|
| 4 | be [adv] [num] years ' | 6 |
|
