| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | are not used [prep] | 39 |
|
| 2 | are not used in | 14 |
|
| 3 | are not used for | 8 |
|
| 4 | are not used to | 7 |
|
| 5 | are not used by | 6 |
|
