| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] had been [v-ing] | 72 |
|
| 2 | [det] had been [v-ing] | 32 |
|
| 3 | many had been [verb] | 26 |
|
| 4 | many have been [v-ing] | 9 |
|
| 5 | many [verb] been [v-ing] | 9 |
|
| 6 | many had [be] [v-ing] | 6 |
|
| 7 | many [vb past] been [v-ing] | 6 |
|
| 8 | many had [been] [v-ing] | 6 |
|
| 9 | many had be [v-ing] | 6 |
|
| 10 | many had been [v-ing] | 6 |
|
