| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a period of [adj] [noun] the | 11 |
|
| 2 | a period [prep] [adj] [noun] the | 11 |
|
| 3 | a period [prep] [adj] [noun sg] the | 6 |
|
| 4 | a period [prep] [num] [noun] the | 5 |
|
| 5 | a period [prep] [adj] [noun] the | 5 |
|
| 6 | a period [prep] [adj] [noun pl] the | 5 |
|
