| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] and a period of | 10 |
|
| 2 | [adj] and a period of | 9 |
|
| 3 | [num] and a period of | 8 |
|
| 4 | [noun sg] and a period of | 8 |
|
| 5 | and [prep] a period of | 23 |
|
| 6 | and [prep] a period of | 23 |
|
| 7 | and [verb] a period of | 13 |
|
| 8 | and over a period of | 12 |
|
| 9 | and over a period of | 12 |
|
| 10 | and for a period of | 6 |
|
| 11 | and for a period of | 6 |
|
| 12 | and after a period of | 5 |
|
| 13 | and after a period of | 5 |
|
| 14 | and a [adj] period of | 9 |
|
| 15 | and a [adj] period of | 8 |
|
| 16 | and a period of [adj] | 17 |
|
| 17 | and a period of [num] | 11 |
|
| 18 | and a period of [noun sg] | 10 |
|
| 19 | and a period of [noun] | 10 |
|
| 20 | and a period of [adj] | 6 |
|
