| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [prep] be at [pos pn] best | 10 |
|
| 2 | [verb] to be at [pos pn] best | 10 |
|
| 3 | [verb] [prep] be at [pos pn] best | 10 |
|
| 4 | [verb] to be at [pos pn] best | 10 |
|
