| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] period in | 83 |
|
| 2 | [prep] a [adj] period in | 83 |
|
| 3 | for a [adj] period in | 32 |
|
| 4 | for a [adj] period in | 32 |
|
| 5 | [verb] a [adj] period in | 18 |
|
| 6 | be a [adj] period in | 12 |
|
| 7 | [be] a [adj] period in | 12 |
|
| 8 | during a [adj] period in | 10 |
|
| 9 | during a [adj] period in | 10 |
|
| 10 | was a [adj] period in | 7 |
|
| 11 | [was/were] a [adj] period in | 7 |
|
| 12 | over a [adj] period in | 7 |
|
| 13 | over a [adj] period in | 7 |
|
| 14 | after a [adj] period in | 6 |
|
| 15 | of a [adj] period in | 6 |
|
| 16 | after a [adj] period in | 6 |
|
| 17 | of a [adj] period in | 6 |
|
| 18 | [vb past] a [adj] period in | 5 |
|
| 19 | [conj] a [adj] period in | 5 |
|
| 20 | a [adv] [adj] period in | 17 |
|
| 21 | a [adv] [adj] period in | 17 |
|
| 22 | a [adj] [adj] period in | 8 |
|
| 23 | a [adj] [adj] period in | 8 |
|
| 24 | a very [adj] period in | 7 |
|
| 25 | a very [adj] period in | 7 |
|
| 26 | a [adj] [noun] period in | 21 |
|
| 27 | a [adj] [noun sg] period in | 20 |
|
| 28 | a [adj] [adj] period in | 8 |
|
| 29 | a [adj] [adj] period in | 8 |
|
| 30 | a [adj] year period in | 5 |
|
