| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] [adv] [prep] a [noun] | 4006 |
|
| 2 | [be] [verb] [adv] [prep] a [noun sg] | 3764 |
|
| 3 | [be] [verb] [adv] [prep] [art] period | 42 |
|
| 4 | [be] [verb] [adv] [prep] a period | 30 |
|
