| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] for a [adj] period [prep] | 30 |
|
| 2 | only for a [adj] [noun] [prep] | 18 |
|
| 3 | only for a [adj] [noun sg] [prep] | 14 |
|
| 4 | only [prep] a [adj] period [prep] | 11 |
|
| 5 | only [prep] a [adj] period [prep] | 11 |
|
| 6 | only for a [adj] period [prep] | 6 |
|
| 7 | only for [art] [adj] period [prep] | 6 |
|
| 8 | only for a [adj] period [prep] | 6 |
|
| 9 | only for a [adj] period [prep] | 6 |
|
| 10 | only for [art] [adj] period [prep] | 6 |
|
