| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] a [noun sg] about | 25 |
|
| 2 | is not a [noun sg] about | 23 |
|
| 3 | is [not/n't] a [noun sg] about | 23 |
|
| 4 | is not a [noun sg] about | 22 |
|
| 5 | is [adv] a book about | 14 |
|
