| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] at an | 1157 |
|
| 2 | begin at [art] | 211 |
|
| 3 | begin at [art] | 211 |
|
| 4 | begin [prep] an | 170 |
|
| 5 | begin at a | 38 |
|
