| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [verb] [prep] | 17588 |
|
| 2 | had been [v-ing] [prep] | 1917 |
|
| 3 | have been walking [prep] | 33 |
|
| 4 | [verb] been walking [prep] | 33 |
|
| 5 | [vb past] been walking [prep] | 20 |
|
| 6 | had be walking [prep] | 18 |
|
| 7 | had [be] walking [prep] | 18 |
|
| 8 | had [been] walking [prep] | 17 |
|
| 9 | had been walk [prep] | 17 |
|
| 10 | had been walking [prep] | 17 |
|
