| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [prep] a [noun] of | 13919 |
|
| 2 | [vb pp] [prep] a [noun sg] of | 13092 |
|
| 3 | [verb] [prep] a period of | 372 |
|
| 4 | [vb pp] [prep] [art] period of | 274 |
|
| 5 | [vb pp] [prep] [art] period of | 274 |
|
| 6 | [vb pp] [prep] a period [prep] | 232 |
|
| 7 | [vb pp] [prep] a period of | 215 |
|
| 8 | [vb pp] [prep] a period of | 215 |
|
| 9 | [vb pp] [prep] a period of | 215 |
|
