| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not [v-ing] [prep] | 5477 |
|
| 2 | not been [prep] | 983 |
|
| 3 | [v-ing] been [prep] | 160 |
|
| 4 | not [v-ing] been | 55 |
|
