| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] has been [v-ing] | 1075 |
|
| 2 | has been [v-ing] [prep] | 1064 |
|
| 3 | [noun sg] has been [prep] | 750 |
|
| 4 | [noun sg] been [v-ing] [prep] | 25 |
|
