| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] [prep] many year | 23 |
|
| 2 | have [been] use [prep] many | 22 |
|
| 3 | [been] use [prep] many year | 12 |
|
| 4 | have [been] use [prep] year | 9 |
|
