| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] has [vb pp] [prep] [art] period | 15 |
|
| 2 | [noun sg] [vb -s] [vb pp] [prep] [art] period | 13 |
|
| 3 | [noun] [vb -s] [vb pp] [prep] a period | 10 |
|
| 4 | [noun] [vb -s] [vb pp] over [art] period | 6 |
|
| 5 | [noun] [vb -s] [vb pp] [prep] the period | 5 |
|
