| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adv] [prep] a [noun] | 1341 |
|
| 2 | be [adv] [prep] a [noun sg] | 1292 |
|
| 3 | be [adv] [prep] [art] period | 14 |
|
| 4 | be [adv] [prep] [art] period | 14 |
|
| 5 | be [adv] [prep] a period | 8 |
|
| 6 | be [adv] [prep] a period | 7 |
|
| 7 | be [adv] [prep] a period | 7 |
|
| 8 | be [adv] [prep] a period | 7 |
|
| 9 | [be] [adv] [prep] a period | 7 |
|
