| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] period | 1796 |
|
| 2 | [prep] a limited [noun] | 659 |
|
| 3 | [prep] a limited [noun sg] | 657 |
|
| 4 | [prep] [art] limited period | 66 |
|
| 5 | [prep] [art] limited period | 66 |
|
| 6 | [prep] a limited period | 66 |
|
| 7 | [prep] a limited period | 66 |
|
