| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not have [been] [v-ing] [prep] | 19 |
|
| 2 | not [vb infin] been [v-ing] [prep] | 19 |
|
| 3 | not [vb infin] [been] [v-ing] [prep] | 10 |
|
| 4 | n't [vb infin] [been] [v-ing] [prep] | 9 |
|
