| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] do be | 1797 |
|
| 2 | have do be | 863 |
|
| 3 | had [verb] be | 830 |
|
| 4 | [vb past] do be | 408 |
|
| 5 | had do [be] | 242 |
|
