| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] [noun] [prep] time | 500 |
|
| 2 | [prep] a [adj] [noun sg] [prep] time | 499 |
|
| 3 | [prep] a [adj] period [prep] [noun] | 430 |
|
| 4 | [prep] [art] [adj] period [prep] time | 289 |
|
| 5 | [prep] [art] [adj] period [prep] time | 289 |
|
| 6 | [prep] a [adj] period [prep] time | 283 |
|
| 7 | [prep] a [adj] period [prep] time | 282 |
|
| 8 | [prep] a [adj] period [prep] time | 268 |
|
| 9 | [prep] a [adj] period [prep] time | 268 |
|
| 10 | [prep] a [adj] period [prep] time | 268 |
|
