| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | used [prep] [det] [noun sg] | 635 |
|
| 2 | been [prep] [det] [noun sg] | 447 |
|
| 3 | been used [prep] [noun sg] | 139 |
|
| 4 | been used [prep] [det] | 101 |
|
