| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] [prep] [adj] | 845 |
|
| 2 | is [adv] use [prep] | 641 |
|
| 3 | [adv] use [prep] [adj] | 390 |
|
| 4 | is use [prep] [adj] | 163 |
|
