| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh adv] it [is] [adj] use | 6 |
|
| 2 | [Wh adv] it [is] [adj] use | 5 |
|
| 3 | [Wh adv] it [is] [adj] to use | 5 |
|
