| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [been] [verb] [adv] [prep] | 2391 |
|
| 2 | [verb] [been] [v-ing] [adv] [prep] | 1226 |
|
| 3 | have [been] [v-ing] [adv] [prep] | 1226 |
|
| 4 | [vb past] [been] [v-ing] [adv] [prep] | 426 |
|
| 5 | had [be] [v-ing] [adv] [prep] | 371 |
|
