| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | over a [adj] period [conj] | 28 |
|
| 2 | [prep] a [adj -er] period [conj] | 25 |
|
| 3 | [prep] a [adj -er] period [conj] | 25 |
|
| 4 | over a [adj -er] [noun sg] [conj] | 17 |
|
| 5 | over a [adj -er] [noun] [conj] | 17 |
|
| 6 | over [art] [adj -er] period [conj] | 6 |
|
| 7 | over a [adj -er] period [conj] | 6 |
|
| 8 | over [art] [adj -er] period [conj] | 6 |
|
| 9 | over a [adj -er] period [conj] | 6 |
|
| 10 | over a [adj -er] period [conj] | 6 |
|
