| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been [verb] [prep] ten year | 10 |
|
| 2 | have been [verb] [prep] ten year | 10 |
|
| 3 | [vb -s] been [verb] [prep] ten year | 5 |
|
| 4 | been [verb] [prep] [adv] ten year | 6 |
|
| 5 | been [verb] [prep] [adv] ten year | 6 |
|
