| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [prep] a [adv] long [noun] | 88 |
|
| 2 | [noun sg] [prep] a [adv] long [noun sg] | 87 |
|
| 3 | [noun sg] [prep] a [adv] [adj] period | 49 |
|
| 4 | [noun] [prep] a [adv] long period | 19 |
|
| 5 | [noun sg] [prep] a [adv] long period | 15 |
|
| 6 | [noun sg] [prep] [art] [adv] long period | 15 |
|
| 7 | [noun sg] [prep] [art] [adv] long period | 15 |
|
| 8 | [noun sg] [prep] a [adv] long period | 14 |
|
