| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [adv] [prep] a [noun sg] | 2593 |
|
| 2 | [be] [not/n't] [prep] [art] [noun sg] | 1698 |
|
| 3 | [be] [not/n't] [prep] a [noun] | 391 |
|
| 4 | [be] [not/n't] [prep] a [noun sg] | 383 |
|
