| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adj] at this | 72 |
|
| 2 | be [adj] at this | 70 |
|
| 3 | be useful at this | 9 |
|
| 4 | be useful at this | 9 |
|
| 5 | be helpful at this | 5 |
|
| 6 | be helpful at this | 5 |
|
