| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [num] [noun] period [prep] | 32 |
|
| 2 | [prep] a [num] [noun] period [prep] | 32 |
|
| 3 | over a [num] [noun] period [prep] | 21 |
|
| 4 | over a [num] [noun] period [prep] | 21 |
|
| 5 | [verb] a [num] [noun] period [prep] | 7 |
|
| 6 | [adv] a [num] [noun] period [prep] | 5 |
|
| 7 | over a [num] [noun] period [prep] | 5 |
|
| 8 | [adv prt] a [num] [noun] period [prep] | 5 |
|
| 9 | over a [num] [noun] period [prep] | 5 |
|
| 10 | a [num] [noun] period [verb] [prep] | 6 |
|
| 11 | a [num] [noun] period [prep] [noun] | 17 |
|
| 12 | a [num] [noun] period [prep] [art] | 12 |
|
| 13 | a [num] [noun] period [prep] [art] | 12 |
|
| 14 | a [num] [noun] period [prep] [adj] | 11 |
|
| 15 | a [num] [noun] period [prep] [noun sg] | 8 |
|
| 16 | a [num] [noun] period [prep] the | 7 |
|
| 17 | a [num] [noun] period [prep] the | 7 |
|
| 18 | a [num] [noun] period [prep] [noun prp] | 6 |
|
| 19 | a [num] [noun] period [prep] [num] | 6 |
|
| 20 | a [num] [noun] period [prep] a | 5 |
|
