| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [prep] a long [noun] | 127 |
|
| 2 | [conj] [prep] a long [noun sg] | 123 |
|
| 3 | [conj] [prep] a [adj] period | 78 |
|
| 4 | [conj] [prep] a [adj] period | 71 |
|
| 5 | [conj] [prep] a long period | 17 |
|
| 6 | [conj] [prep] [art] long period | 13 |
|
| 7 | [conj] [prep] a long period | 12 |
|
