| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [adj] period [prep] [noun sg] | 612 |
|
| 2 | a [adj] period [prep] [noun sg] | 570 |
|
| 3 | a brief [noun] [prep] [noun sg] | 161 |
|
| 4 | a brief [noun sg] [prep] [noun sg] | 159 |
|
| 5 | a brief period [prep] [noun] | 34 |
|
| 6 | [art] brief period [prep] [noun sg] | 28 |
|
| 7 | [art] brief period [prep] [noun sg] | 28 |
|
| 8 | a brief period [prep] [noun sg] | 25 |
|
| 9 | a brief period [prep] [noun sg] | 25 |
|
| 10 | a brief period [prep] [noun sg] | 25 |
|
| 11 | a brief period [prep] [noun sg] | 25 |
|
