| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [not/n't] have [been] [verb] [prep] | 255 |
|
| 2 | [vb mod] [adv] have [been] [v-ing] [prep] | 44 |
|
| 3 | [modal v] [not/n't] have [been] [v-ing] [prep] | 19 |
|
| 4 | [vb mod] [not/n't] have [been] [v-ing] [prep] | 19 |
|
| 5 | [vb mod] [not/n't] [verb] [been] [v-ing] [prep] | 19 |
|
| 6 | [vb mod] [not/n't] have [be] [v-ing] [prep] | 19 |
|
