| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] a long period | 12 |
|
| 2 | [conj] a longer period | 7 |
|
| 3 | [that] a long period | 5 |
|
| 4 | [subord] a long period | 5 |
|
| 5 | that a long period | 5 |
|
| 6 | [conj] a long period | 5 |
|
| 7 | that a long period | 5 |
|
