| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [adv] been [verb] | 5576 |
|
| 2 | had [adv] been [v-ing] | 601 |
|
| 3 | have [adv] been reading | 11 |
|
| 4 | [verb] [adv] been reading | 11 |
|
| 5 | had [adv] been read | 9 |
|
| 6 | had [adv] [been] reading | 6 |
|
| 7 | had [adv] [be] reading | 6 |
|
| 8 | had [adv] be reading | 6 |
|
| 9 | [vb past] [adv] been reading | 6 |
|
