| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] over a [adj] period of | 57 |
|
| 2 | [noun sg] over a [adj] period of | 52 |
|
| 3 | [noun sg] [prep] a long period of | 50 |
|
| 4 | [noun sg] [prep] a long period of | 50 |
|
| 5 | [noun] over a long period of | 40 |
|
| 6 | [noun sg] over a long period [prep] | 37 |
|
| 7 | [noun sg] over a long period [prep] | 37 |
|
| 8 | [noun sg] over a long period of | 36 |
|
| 9 | [noun sg] over a long [noun] of | 33 |
|
| 10 | [noun sg] over [art] long period of | 32 |
|
| 11 | [noun sg] over a long period of | 32 |
|
| 12 | [noun sg] over a long period of | 32 |
|
