| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and [prep] a [adj] [noun] of | 453 |
|
| 2 | and [prep] a [adj] [noun sg] of | 432 |
|
| 3 | [conj] [prep] a [adj] period of | 21 |
|
| 4 | [coord] [prep] a [adj] period of | 13 |
|
| 5 | and [prep] a [adj] period [prep] | 10 |
|
| 6 | and [prep] a [adj] period [prep] | 10 |
|
| 7 | and [prep] [art] [adj] period of | 10 |
|
| 8 | and [prep] a [adj] period of | 7 |
|
| 9 | and [prep] a [adj] period of | 7 |
|
| 10 | and [prep] a [adj] period of | 7 |
|
