| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [not/n't] a [noun sg] | 2460 |
|
| 2 | is [prep] a [noun sg] | 1628 |
|
| 3 | [not/n't] [prep] a [noun sg] | 1123 |
|
| 4 | is [not/n't] [prep] [noun sg] | 627 |
|
| 5 | is [not/n't] [prep] a | 128 |
|
