| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] period [prep] [noun] | 488 |
|
| 2 | [prep] a [adj] period [prep] [noun] | 488 |
|
| 3 | for a [adj] period [prep] [noun] | 169 |
|
| 4 | for a [adj] period [prep] [noun] | 169 |
|
| 5 | over a [adj] period [prep] [noun] | 146 |
|
| 6 | over a [adj] period [prep] [noun] | 146 |
|
| 7 | [verb] a [adj] period [prep] [noun] | 103 |
|
| 8 | after a [adj] period [prep] [noun] | 54 |
|
| 9 | after a [adj] period [prep] [noun] | 54 |
|
| 10 | [adv] a [adj] period [prep] [noun] | 40 |
|
| 11 | be a [adj] period [prep] [noun] | 34 |
|
| 12 | [be] a [adj] period [prep] [noun] | 34 |
|
| 13 | [conj] a [adj] period [prep] [noun] | 29 |
|
| 14 | [vb past] a [adj] period [prep] [noun] | 25 |
|
| 15 | within a [adj] period [prep] [noun] | 22 |
|
| 16 | within a [adj] period [prep] [noun] | 22 |
|
| 17 | over a [adj] period [prep] [noun] | 21 |
|
| 18 | in a [adj] period [prep] [noun] | 21 |
|
| 19 | over a [adj] period [prep] [noun] | 21 |
|
| 20 | in a [adj] period [prep] [noun] | 21 |
|
| 21 | [adv prt] a [adj] period [prep] [noun] | 21 |
|
| 22 | [v-ing] a [adj] period [prep] [noun] | 19 |
|
| 23 | [adv] a [adj] period [prep] [noun] | 18 |
|
| 24 | of a [adj] period [prep] [noun] | 16 |
|
| 25 | of a [adj] period [prep] [noun] | 16 |
|
| 26 | [vb base] a [adj] period [prep] [noun] | 15 |
|
| 27 | [vb infin] a [adj] period [prep] [noun] | 14 |
|
| 28 | [is] a [adj] period [prep] [noun] | 14 |
|
| 29 | is a [adj] period [prep] [noun] | 13 |
|
| 30 | during a [adj] period [prep] [noun] | 13 |
|
