| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [verb] to | 2093 |
|
| 2 | had been [v-ing] to | 118 |
|
| 3 | [verb] been listening to | 64 |
|
| 4 | have been listening to | 64 |
|
| 5 | had been listening [prep] | 37 |
|
| 6 | had been listening [prep] | 37 |
|
| 7 | [vb past] been listening to | 33 |
|
| 8 | had been listen to | 29 |
|
| 9 | had been listening to | 28 |
|
| 10 | had [be] listening to | 28 |
|
| 11 | had [been] listening to | 28 |
|
| 12 | had be listening to | 28 |
|
