| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not have [been] [verb] | 733 |
|
| 2 | [adv] have [been] [v-ing] | 280 |
|
| 3 | not have [be] [v-ing] | 74 |
|
| 4 | not [verb] [been] [v-ing] | 74 |
|
