| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [prep] a long period | 67 |
|
| 2 | [conj] [vb pp] [prep] a long | 27 |
|
| 3 | [conj] [prep] a long period | 17 |
|
| 4 | [conj] [vb pp] [prep] a period | 9 |
|
| 5 | [conj] [vb pp] [prep] long period | 7 |
|
