| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not have been [v-ing] | 36 |
|
| 2 | not have be [v-ing] | 36 |
|
| 3 | not have [been] [v-ing] | 36 |
|
| 4 | not have [be] [v-ing] | 34 |
|
