| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | he had [been] [v-ing] for some | 9 |
|
| 2 | he [vb past] [been] [v-ing] for some | 9 |
|
| 3 | he [vb past] [been] [v-ing] for some | 9 |
|
| 4 | he [vb past] been [v-ing] for some | 9 |
|
