| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adv] [prep] [adj] | 206 |
|
| 2 | be [adv] useful [prep] | 138 |
|
| 3 | [adv] useful [prep] [adj] | 84 |
|
| 4 | be useful [prep] [adj] | 40 |
|
