| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a period [verb] [prep] | 22 |
|
| 2 | [prep] a period [verb] [prep] | 22 |
|
| 3 | [verb] a period [verb] [prep] | 8 |
|
| 4 | mean a period [verb] [prep] | 5 |
|
| 5 | [vb -s] a period [verb] [prep] | 5 |
|
| 6 | means a period [verb] [prep] | 5 |
|
| 7 | a [adj] period [verb] [prep] | 28 |
|
| 8 | a [adj] period [verb] [prep] | 25 |
|
| 9 | a period of [verb] [prep] | 8 |
|
| 10 | a period [prep] [verb] [prep] | 8 |
|
| 11 | a period [prep] [verb] [prep] | 8 |
|
| 12 | a period of [verb] [prep] | 8 |
|
| 13 | a period [conj] [verb] [prep] | 6 |
|
| 14 | a period [verb] [prep] [art] | 15 |
|
| 15 | a period [verb] [prep] [art] | 15 |
|
| 16 | a period [verb] [prep] the | 13 |
|
| 17 | a period [verb] [prep] the | 13 |
|
| 18 | a period [verb] [prep] [noun] | 11 |
|
| 19 | a period [verb] [prep] [adj] | 9 |
|
| 20 | a period [verb] [prep] [adj] | 6 |
|
| 21 | a period [verb] [prep] [noun sg] | 5 |
|
