| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] to be used [prep] | 23 |
|
| 2 | not [prep] be used [prep] | 23 |
|
| 3 | [not/n't] [prep] be used in | 10 |
|
| 4 | [not/n't] [prep] be used for | 6 |
|
| 5 | [not/n't] [prep] be used as | 5 |
|
