| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] [adv] [prep] [det] | 110 |
|
| 2 | [been] used [prep] [det] | 101 |
|
| 3 | [been] used [adv] [prep] | 95 |
|
| 4 | used [adv] [prep] [det] | 58 |
|
