| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and [noun] [prep] a [noun] of | 597 |
|
| 2 | and [noun] [prep] a [noun sg] of | 555 |
|
| 3 | and [noun] [prep] [art] period of | 21 |
|
| 4 | [conj] [noun] [prep] a period of | 19 |
|
| 5 | [coord] [noun] [prep] a period of | 18 |
|
| 6 | and [noun] [prep] a period of | 12 |
|
| 7 | and [noun] [prep] a period of | 12 |
|
| 8 | and [noun] [prep] a period [prep] | 12 |
|
| 9 | and [noun] [prep] a period [prep] | 12 |
|
| 10 | and [noun] [prep] a period of | 12 |
|
