| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] a long [noun] | 510 |
|
| 2 | [adv] a long [noun sg] | 509 |
|
| 3 | [adv] a [adj] period | 58 |
|
| 4 | [adv] a long period | 43 |
|
| 5 | [adv] [art] long period | 10 |
|
| 6 | [adv] [art] long period | 10 |
|
| 7 | [adv] a long period | 8 |
|
| 8 | [adv] a long period | 8 |
|
