| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [prep] a long [noun] | 1031 |
|
| 2 | [noun sg] [prep] a long [noun sg] | 1019 |
|
| 3 | [noun sg] [prep] a [adj] period | 519 |
|
| 4 | [noun] [prep] a long period | 177 |
|
| 5 | [noun sg] [prep] [art] long period | 136 |
|
| 6 | [noun sg] [prep] [art] long period | 136 |
|
| 7 | [noun sg] [prep] a long period | 129 |
|
| 8 | [noun sg] [prep] a long period | 129 |
|
| 9 | [noun sg] [prep] a long period | 129 |
|
