| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] [prep] a [adj] period [prep] | 9 |
|
| 2 | [subord] [prep] a [adj] period [prep] | 9 |
|
| 3 | [subord] for a [adj] period [prep] | 5 |
|
| 4 | [subord] for a [adj] period [prep] | 5 |
|
| 5 | [subord] a [adj] period [prep] [noun] | 7 |
|
| 6 | [subord] a [adj] period [prep] [noun sg] | 6 |
|
| 7 | [subord] a [adj] period [prep] [adj] | 6 |
|
