| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [v-ing] a long time | 10 |
|
| 2 | [verb] been waiting a long time | 9 |
|
| 3 | [vb base] been [v-ing] a long time | 7 |
|
| 4 | have been [v-ing] a long time | 5 |
|
