| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could be [vb pp] by the [noun sg] | 164 |
|
| 2 | could be explained by the [noun sg] | 11 |
|
| 3 | could be used by the [noun sg] | 9 |
|
| 4 | could be [vb pp] by the end | 6 |
|
| 5 | could be seen by the [noun sg] | 5 |
|
| 6 | could be [vb pp] by the fact | 5 |
|
