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