| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [to-vb] is | 2146 |
|
| 2 | have [to-vb] is | 583 |
|
| 3 | had [to-vb] [be] | 276 |
|
| 4 | had [to-vb] be | 276 |
|
| 5 | [vb past] [to-vb] is | 49 |
|
| 6 | had [verb] is | 19 |
|
| 7 | had [to-vb] [is] | 8 |
|
