| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] it [prep] [art] | 469 |
|
| 2 | be [verb] at [prep] [art] | 188 |
|
| 3 | [verb] at it [prep] [art] | 169 |
|
| 4 | be [verb] at it [prep] | 35 |
|
| 5 | be at it [prep] [art] | 7 |
|
