| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [am/are] [adv] [verb] [prep] a [noun sg] | 703 |
|
| 2 | [am/are] [not/n't] [verb] [prep] [art] [noun sg] | 575 |
|
| 3 | [be] [not/n't] [verb] [prep] a [noun sg] | 497 |
|
| 4 | [am/are] [not/n't] [verb] [prep] a [noun] | 142 |
|
