| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] a [noun sg] | 10563 |
|
| 2 | been a [noun sg] | 6969 |
|
| 3 | [not/n't] been a | 359 |
|
| 4 | [not/n't] been [noun sg] | 59 |
|
