| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] only a [adj] period [prep] | 10 |
|
| 2 | [prep] only a [adj] period [prep] | 10 |
|
| 3 | for only a [adj] period [prep] | 7 |
|
| 4 | for only a [adj] period [prep] | 7 |
|
| 5 | only [prep] a [adj] period [prep] | 11 |
|
| 6 | only [prep] a [adj] period [prep] | 11 |
|
| 7 | only for a [adj] period [prep] | 6 |
|
| 8 | only for a [adj] period [prep] | 6 |
|
| 9 | only a [adj] period [prep] [noun sg] | 9 |
|
| 10 | only a [adj] period [prep] [noun] | 9 |
|
| 11 | only a [adj] period [prep] time | 6 |
|
| 12 | only a [adj] period [prep] time | 6 |
|
