| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | 've been [v-ing] [prep] | 879 |
|
| 2 | 've been [adv] [prep] | 257 |
|
| 3 | been [adv] [v-ing] [prep] | 134 |
|
| 4 | 've been [adv] [v-ing] | 26 |
|
