| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they could [verb] [noun] | 293 |
|
| 2 | they could [vb infin] [noun] | 287 |
|
| 3 | [pron] could do [noun] | 52 |
|
| 4 | [pers pn] could do [noun] | 50 |
|
| 5 | they [modal v] do [noun] | 36 |
|
| 6 | they could do [noun] | 8 |
|
| 7 | they could do [noun] | 8 |
|
