| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [adj] a [noun] [prep] | 1085 |
|
| 2 | [prep] [adj] a [noun sg] [prep] | 1068 |
|
| 3 | [prep] [adj] [art] period [prep] | 13 |
|
| 4 | [prep] [adj] [art] period [prep] | 13 |
|
| 5 | [prep] [adj] a period [prep] | 10 |
|
| 6 | [prep] [adj] a period [prep] | 10 |
|
| 7 | [prep] [adj] a period [prep] | 10 |
|
| 8 | [prep] [adj] a period [prep] | 10 |
|
