| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] been [verb] [verb] | 489 |
|
| 2 | [modal v] [verb] been [verb] have | 70 |
|
| 3 | [modal v] [verb] been [verb] [vb past] | 51 |
|
| 4 | [modal v] [verb] [been] [verb] had | 50 |
|
| 5 | [modal v] [verb] [be] [verb] had | 50 |
|
| 6 | [modal v] [verb] be [verb] had | 50 |
|
