| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they could do [be] [noun sg] | 9 |
|
| 2 | they could do be [noun] | 9 |
|
| 3 | they could do [was/were] [noun] | 9 |
|
| 4 | they could do was [noun] | 9 |
|
| 5 | they could do [be] [noun] | 9 |
|
