| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [been] [verb] [adv prt] | 2654 |
|
| 2 | [verb] [been] [v-ing] [adv prt] | 1378 |
|
| 3 | have [been] [v-ing] [adv prt] | 1378 |
|
| 4 | had [been] [v-ing] [adv] | 861 |
|
| 5 | [vb past] [been] [v-ing] [adv prt] | 417 |
|
| 6 | had [be] [v-ing] [adv prt] | 344 |
|
