| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a long period | 391 |
|
| 2 | [prep] a long period | 391 |
|
| 3 | over a long period | 232 |
|
| 4 | over a long period | 232 |
|
| 5 | for a long period | 101 |
|
| 6 | for a long period | 101 |
|
| 7 | [adv] a long period | 43 |
|
| 8 | [adv prt] a long period | 34 |
|
| 9 | [verb] a long period | 34 |
|
| 10 | over a long period | 34 |
|
| 11 | over a long period | 34 |
|
| 12 | after a long period | 22 |
|
| 13 | after a long period | 22 |
|
| 14 | [det] a long period | 13 |
|
| 15 | such a long period | 13 |
|
| 16 | [adj] a long period | 13 |
|
| 17 | such a long period | 13 |
|
| 18 | be a long period | 12 |
|
| 19 | of a long period | 12 |
|
| 20 | of a long period | 12 |
|
| 21 | [conj] a long period | 12 |
|
| 22 | [be] a long period | 12 |
|
| 23 | [vb pp] a long period | 9 |
|
| 24 | [vb past] a long period | 9 |
|
| 25 | quite a long period | 8 |
|
| 26 | [adv] a long period | 8 |
|
| 27 | quite a long period | 8 |
|
| 28 | follow a long period | 5 |
|
| 29 | have a long period | 5 |
|
| 30 | that a long period | 5 |
|
