| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] been [v-ing] | 1678 |
|
| 2 | been [v-ing] since | 154 |
|
| 3 | [adv] [v-ing] since | 13 |
|
| 4 | [adv] been since | 8 |
|
