| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | back at [art] beginning [prep] | 6 |
|
| 2 | back at the beginning [prep] | 6 |
|
| 3 | back at [art] beginning of | 6 |
|
| 4 | back at [art] beginning of | 6 |
|
| 5 | back at [art] beginning [prep] | 6 |
|
