| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [not/n't] a [noun sg] | 2941 |
|
| 2 | is [prep] a [noun sg] | 1814 |
|
| 3 | [not/n't] [prep] a [noun sg] | 1292 |
|
| 4 | is [not/n't] [prep] [noun sg] | 627 |
|
| 5 | is [not/n't] [prep] a | 147 |
|
