| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | this [modal v] not be do | 32 |
|
| 2 | this could not be [verb] | 28 |
|
| 3 | this could [adv] be do | 13 |
|
| 4 | this could not be do | 7 |
|
| 5 | [adj] could not be do | 7 |
|
| 6 | this could [not/n't] be do | 7 |
|
| 7 | this could not [be] do | 7 |
|
