| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] have been [noun sg] [prep] | 10 |
|
| 2 | not have been [noun sg] [prep] | 9 |
|
| 3 | [not/n't] have been [noun sg] of | 8 |
|
| 4 | [not/n't] have been part [prep] | 6 |
|
