| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] period [prep] time | 283 |
|
| 2 | [prep] a [adj] period [prep] time | 283 |
|
| 3 | after a [adj] period [prep] [noun] | 50 |
|
| 4 | after a [adj] period [prep] [noun sg] | 46 |
|
| 5 | after a [adj] [noun] [prep] time | 16 |
|
| 6 | after a [adj] period [prep] time | 12 |
|
| 7 | after [art] [adj] period [prep] time | 12 |
|
| 8 | after [art] [adj] period [prep] time | 12 |
|
| 9 | after a [adj] period [prep] time | 11 |
|
| 10 | after a [adj] period [prep] time | 11 |
|
| 11 | after a [adj] period [prep] time | 11 |
|
