| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [noun] [prep] time | 2234 |
|
| 2 | a [noun sg] [prep] time | 2231 |
|
| 3 | a period [prep] [noun] | 967 |
|
| 4 | [art] period [prep] time | 328 |
|
| 5 | [art] period [prep] time | 328 |
|
| 6 | a period [prep] time | 285 |
|
| 7 | a period [prep] time | 284 |
|
| 8 | a period [prep] time | 284 |
|
