| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [noun] [prep] time | 1769 |
|
| 2 | a [noun sg] [prep] time | 1767 |
|
| 3 | a period [prep] [noun] | 967 |
|
| 4 | a period [prep] [noun sg] | 813 |
|
| 5 | [art] period [prep] time | 328 |
|
| 6 | [art] period [prep] time | 328 |
|
| 7 | a period [prep] time | 285 |
|
| 8 | a period [prep] time | 284 |
|
| 9 | a period [prep] time | 284 |
|
| 10 | a period [prep] time | 284 |
|
