| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [adv] [prep] a [noun] [prep] | 2030 |
|
| 2 | [vb pp] [adv] [prep] a [noun sg] [prep] | 1914 |
|
| 3 | [verb] [adv] [prep] a period [prep] | 65 |
|
| 4 | [vb pp] [adv] [prep] [art] period [prep] | 46 |
|
| 5 | [vb pp] [adv] [prep] [art] period [prep] | 46 |
|
| 6 | [vb pp] [adv] [prep] a period [prep] | 32 |
|
| 7 | [vb pp] [adv] [prep] a period [prep] | 32 |
|
