| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [noun prp] had been [verb] | 650 |
|
| 2 | [conj] [noun prp] have been [v-ing] | 317 |
|
| 3 | [conj] [noun prp] [verb] been [v-ing] | 317 |
|
| 4 | [conj] [noun] had been [v-ing] | 236 |
|
| 5 | [conj] [noun prp] had [be] [v-ing] | 189 |
|
| 6 | [conj] [noun prp] [vb past] been [v-ing] | 189 |
|
| 7 | [conj] [noun prp] had [been] [v-ing] | 189 |
|
| 8 | [conj] [noun prp] had be [v-ing] | 189 |
|
