| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [be] [vb pp] to be do | 16 |
|
| 2 | [modal v] be [vb pp] to be do | 16 |
|
| 3 | [modal v] [be] seen to be do | 13 |
|
| 4 | [modal v] [be] [vb pp] to be done | 10 |
|
| 5 | should [be] [vb pp] to be do | 7 |
|
| 6 | should [be] [vb pp] to be do | 7 |
|
| 7 | [modal v] [be] [vb pp] to be doing | 6 |
|
