| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a long period [prep] | 245 |
|
| 2 | a long period [prep] | 245 |
|
| 3 | a long period of | 205 |
|
| 4 | a long period of | 205 |
|
| 5 | a long period [conj] | 35 |
|
| 6 | a long period [subord] | 17 |
|
| 7 | a long period [coord] | 15 |
|
| 8 | a long period than | 15 |
|
| 9 | a long period than | 15 |
|
| 10 | a long period and | 14 |
|
| 11 | a long period [adv] | 14 |
|
| 12 | a long period [verb] | 14 |
|
| 13 | a long period and | 14 |
|
| 14 | a long period [vb mod] | 10 |
|
| 15 | a long period [adv] | 10 |
|
| 16 | a long period [modal v] | 10 |
|
| 17 | a long period in | 9 |
|
| 18 | a long period in | 9 |
|
| 19 | a long period during | 8 |
|
| 20 | a long period during | 8 |
|
| 21 | a long period be | 6 |
|
| 22 | a long period [pron] | 6 |
|
| 23 | a long period [be] | 6 |
|
| 24 | a long period [pers pn] | 5 |
|
| 25 | [prep] a long period | 391 |
|
| 26 | [prep] a long period | 391 |
|
| 27 | over a long period | 232 |
|
| 28 | over a long period | 232 |
|
| 29 | for a long period | 101 |
|
| 30 | for a long period | 101 |
|
