| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] a period | 832 |
|
| 2 | [noun pl] [prep] a period | 218 |
|
| 3 | times [prep] a [noun] | 136 |
|
| 4 | times [prep] a [noun sg] | 132 |
|
| 5 | times [prep] [art] period | 10 |
|
| 6 | times [prep] [art] period | 10 |
|
| 7 | time [prep] a period | 8 |
|
| 8 | times [prep] a period | 5 |
|
| 9 | times [prep] a period | 5 |
|
| 10 | times [prep] a period | 5 |
|
