| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] of a [adj] period [prep] | 35 |
|
| 2 | [noun sg] of a [adj] period [prep] | 30 |
|
| 3 | [noun] of a [adj] period of | 25 |
|
| 4 | [noun] of a long period [prep] | 10 |
|
| 5 | end of a [adj] period [prep] | 7 |
|
| 6 | [noun pl] of a [adj] period [prep] | 7 |
|
| 7 | end of a [adj] period [prep] | 7 |
|
| 8 | [noun] of a [adj] period in | 6 |
|
