| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] over a long period | 14 |
|
| 2 | [be] [verb] over a long period | 14 |
|
| 3 | have [verb] over a long period | 12 |
|
| 4 | [verb] [verb] over a long period | 12 |
|
| 5 | has [verb] over a long period | 5 |
|
| 6 | [vb -s] [verb] over a long period | 5 |
|
| 7 | [been] [verb] over a long period | 5 |
|
| 8 | been [verb] over a long period | 5 |
|
| 9 | [verb] [verb] over a long period | 12 |
|
| 10 | [verb] [vb pp] over a long period | 12 |
|
| 11 | [verb] [adv] over a long period | 9 |
|
| 12 | [verb] [noun] over a long period | 5 |
|
| 13 | [verb] [adv] over a long period | 5 |
|
| 14 | [verb] over a long period [prep] | 14 |
|
| 15 | [verb] over a long period [prep] | 14 |
|
| 16 | [verb] over a long period of | 13 |
|
| 17 | [verb] over a long period of | 13 |
|
| 18 | [verb] over a long period [coord] | 5 |
|
| 19 | [verb] over a long period and | 5 |
|
| 20 | [verb] over a long period [conj] | 5 |
|
| 21 | [verb] over a long period and | 5 |
|
