| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] the beginning [prep] a period | 5 |
|
| 2 | the beginning [prep] a period [prep] | 8 |
|
| 3 | the beginning [prep] a period [prep] | 8 |
|
| 4 | the beginning [prep] a period of | 7 |
|
| 5 | the beginning [prep] a period of | 7 |
|
