| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [subord] use | 15 |
|
| 2 | [prep] [subord] to use | 12 |
|
| 3 | [prep] whether use | 12 |
|
| 4 | of [subord] use | 5 |
|
| 5 | of [subord] use | 5 |
|
