| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [adv] a [adj] [noun] | 12104 |
|
| 2 | [be] [adv] [art] [adj] period | 20 |
|
| 3 | [be] [adv] [art] [adj] period | 20 |
|
| 4 | [be] [adv] a [adj] period | 15 |
|
