| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adv] [verb] [prep] a [noun sg] | 4312 |
|
| 2 | be [not/n't] [verb] [prep] [art] [noun sg] | 2156 |
|
| 3 | be [not/n't] [verb] [prep] a [noun] | 509 |
|
| 4 | [be] [not/n't] [verb] [prep] a [noun sg] | 497 |
|
