| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] a [adj] period [prep] | 180 |
|
| 2 | [verb] a [adj] period [prep] | 159 |
|
| 3 | [verb] a lengthy [noun] [prep] | 58 |
|
| 4 | [verb] a lengthy period [prep] | 7 |
|
| 5 | [verb] a lengthy period [prep] | 7 |
|
| 6 | [verb] [art] lengthy period [prep] | 7 |
|
| 7 | [verb] [art] lengthy period [prep] | 7 |
|
| 8 | [verb] a lengthy period [prep] | 7 |
|
