| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they could [vb infin] be [noun sg] | 10 |
|
| 2 | they could [verb] was [noun sg] | 10 |
|
| 3 | they could [verb] be [noun sg] | 10 |
|
| 4 | they could do be [noun sg] | 9 |
|
| 5 | they could do be [noun sg] | 9 |
|
