| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [be] [verb] | 38032 |
|
| 2 | had [be] [v-ing] | 5826 |
|
| 3 | [verb] [be] doing | 848 |
|
| 4 | have [be] doing | 830 |
|
| 5 | had [be] do | 421 |
|
| 6 | [vb past] [be] doing | 190 |
|
