| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [v-ing] [prep] some [noun sg] | 14 |
|
| 2 | has been [v-ing] for some [noun sg] | 12 |
|
| 3 | has been [v-ing] for some [noun sg] | 12 |
|
| 4 | has been [v-ing] [prep] some time | 12 |
|
