| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] period of | 544 |
|
| 2 | [prep] a [adj] period of | 544 |
|
| 3 | after a [adj] [noun] of | 420 |
|
| 4 | after a [adj] [noun sg] of | 341 |
|
| 5 | after a [adj] period [prep] | 80 |
|
| 6 | after [art] [adj] period of | 76 |
|
| 7 | after [art] [adj] period of | 76 |
|
| 8 | after a [adj] period of | 71 |
|
| 9 | after a [adj] period of | 64 |
|
| 10 | after a [adj] period of | 64 |
|
