| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [coord] [prep] a period of | 12 |
|
| 2 | [noun sg] [coord] [prep] a period of | 10 |
|
| 3 | [coord] [noun] [prep] a period of | 18 |
|
| 4 | [coord] [verb] [prep] a period of | 12 |
|
| 5 | [coord] [adv] [prep] a period of | 9 |
|
| 6 | [coord] [noun sg] [prep] a period of | 9 |
|
| 7 | [coord] [adv] [prep] a period of | 8 |
|
| 8 | [coord] [vb pp] [prep] a period of | 5 |
|
| 9 | [coord] [noun pl] [prep] a period of | 5 |
|
| 10 | [coord] [prep] a [adj] period of | 13 |
|
| 11 | [coord] [prep] a [adj] period of | 13 |
|
| 12 | [coord] [prep] a period of [noun] | 19 |
|
| 13 | [coord] [prep] a period of [noun sg] | 15 |
|
| 14 | [coord] [prep] a period of time | 13 |
|
| 15 | [coord] [prep] a period of time | 13 |
|
| 16 | [coord] [prep] a period of [adj] | 9 |
|
| 17 | [coord] [prep] a period of [num] | 5 |
|
