| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [noun] in which [art] | 264 |
|
| 2 | [prep] a [noun sg] in which [art] | 262 |
|
| 3 | [prep] [art] period in which [art] | 17 |
|
| 4 | [prep] [art] period in which [art] | 17 |
|
| 5 | [prep] a period [prep] which [art] | 10 |
|
| 6 | [prep] a period [prep] which [art] | 10 |
|
| 7 | [prep] a period in which [art] | 6 |
|
| 8 | [prep] a period in [Wh det] [art] | 6 |
|
| 9 | [prep] a period in [pron] [art] | 6 |
|
| 10 | [prep] a period in which [art] | 6 |
|
| 11 | [prep] a period in which [art] | 6 |
|
| 12 | [prep] a period in which [art] | 6 |
|
