| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [v-ing] for two | 25 |
|
| 2 | [vb -s] been [v-ing] for two | 9 |
|
| 3 | [vb past] been [v-ing] for two | 8 |
|
| 4 | [vb base] been [v-ing] for two | 8 |
|
| 5 | had been [v-ing] for two | 8 |
|
| 6 | has been [v-ing] for two | 7 |
|
