| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a brief period [prep] [noun] | 34 |
|
| 2 | a brief period [prep] [noun sg] | 25 |
|
| 3 | a brief period [prep] [art] | 13 |
|
| 4 | a brief period [prep] [art] | 13 |
|
| 5 | a brief period [prep] the | 11 |
|
| 6 | a brief period [prep] the | 11 |
|
| 7 | a brief period [prep] [adj] | 10 |
|
| 8 | a brief period [prep] [noun prp] | 9 |
|
| 9 | a brief period [prep] [adj] | 7 |
|
| 10 | [prep] a brief period [prep] | 36 |
|
| 11 | [prep] a brief period [prep] | 36 |
|
| 12 | for a brief period [prep] | 21 |
|
| 13 | for a brief period [prep] | 21 |
|
| 14 | [verb] a brief period [prep] | 17 |
|
| 15 | [vb past] a brief period [prep] | 8 |
|
| 16 | after a brief period [prep] | 6 |
|
| 17 | after a brief period [prep] | 6 |
|
| 18 | [v-ing] a brief period [prep] | 5 |
|
| 19 | a [adv] brief period [prep] | 6 |
|
| 20 | a [adv] brief period [prep] | 6 |
|
