| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] over a long period [conj] | 7 |
|
| 2 | [noun sg] over a long period [conj] | 6 |
|
| 3 | [vb pp] over a long period [conj] | 6 |
|
| 4 | [verb] over a long period [conj] | 6 |
|
