| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [vb -s] [prep] a [adj] period | 9 |
|
| 2 | [noun sg] [vb -s] [prep] a [adj] period | 8 |
|
| 3 | [vb -s] [verb] [prep] a [adj] period | 8 |
|
| 4 | [vb -s] [vb pp] [prep] a [adj] period | 7 |
|
| 5 | [vb -s] [prep] a [adj] period [prep] | 10 |
|
| 6 | [vb -s] [prep] a [adj] period [prep] | 10 |
|
| 7 | [vb -s] [prep] a [adj] period of | 6 |
|
| 8 | [vb -s] [prep] a [adj] period of | 6 |
|
