| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] a [adj] period | 29 |
|
| 2 | [coord] a [adj] period | 23 |
|
| 3 | after a [adj] period | 17 |
|
| 4 | after a [adj] period | 17 |
|
| 5 | and a [adj] period | 16 |
|
| 6 | and a [adj] period | 16 |
|
| 7 | that a [adj] period | 11 |
|
| 8 | that a [adj] period | 11 |
|
| 9 | [that] a [adj] period | 11 |
|
| 10 | [conj] a short period | 9 |
|
| 11 | [conj] a brief period | 6 |
|
| 12 | [conj] a long period | 5 |
|
