| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that [prep] a [noun] [prep] | 204 |
|
| 2 | [adj] [prep] a period [prep] | 79 |
|
| 3 | [det] [prep] a period [prep] | 12 |
|
| 4 | that [prep] [art] period [prep] | 8 |
|
| 5 | that [prep] [art] period [prep] | 8 |
|
| 6 | that [prep] a period [prep] | 7 |
|
| 7 | that [prep] a period [prep] | 7 |
|
| 8 | that [prep] a period [prep] | 7 |
|
