| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been [v-ing] | 19916 |
|
| 2 | been [v-ing] since | 154 |
|
| 3 | [verb] been since | 49 |
|
| 4 | [verb] [v-ing] since | 7 |
|
