| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] do was | 182 |
|
| 2 | [vb mod] do [was/were] | 173 |
|
| 3 | could do [was/were] | 156 |
|
| 4 | [vb mod] to do [was/were] | 12 |
|
| 5 | used do [was/were] | 9 |
|
| 6 | would do [was/were] | 8 |
|
