| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] a longer period | 40 |
|
| 2 | [noun sg] [prep] a longer period | 27 |
|
| 3 | [verb] [prep] a longer period | 19 |
|
| 4 | [vb pp] [prep] a longer period | 14 |
|
| 5 | [noun pl] [prep] a longer period | 13 |
|
| 6 | [adv] [prep] a longer period | 7 |
|
| 7 | [conj] [prep] a longer period | 5 |
|
| 8 | [prep] a [adv] longer period | 21 |
|
| 9 | [prep] a [adv] longer period | 21 |
|
| 10 | [prep] a much longer period | 16 |
|
| 11 | [prep] a much longer period | 16 |
|
| 12 | [prep] a longer period [prep] | 17 |
|
| 13 | [prep] a longer period [prep] | 17 |
|
| 14 | [prep] a longer period [conj] | 15 |
|
| 15 | [prep] a longer period of | 12 |
|
| 16 | [prep] a longer period [subord] | 12 |
|
| 17 | [prep] a longer period than | 12 |
|
| 18 | [prep] a longer period of | 12 |
|
| 19 | [prep] a longer period than | 12 |
|
