| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [v-ing] [prep] | 1064 |
|
| 2 | [pers pn] has been [v-ing] | 476 |
|
| 3 | [pers pn] has been [prep] | 319 |
|
| 4 | [pers pn] been [v-ing] [prep] | 136 |
|
