| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they could be [verb] | 507 |
|
| 2 | they could be [vb pp] | 474 |
|
| 3 | they could be [v-ing] | 59 |
|
| 4 | they could be used | 40 |
|
| 5 | they could be use | 40 |
|
| 6 | them could be [verb] | 26 |
|
| 7 | they could be seen | 20 |
|
| 8 | they could be see | 20 |
|
| 9 | they could be make | 13 |
|
| 10 | they could be made | 12 |
|
| 11 | they could be say | 10 |
|
| 12 | they could be put | 9 |
|
| 13 | they could be said | 9 |
|
| 14 | they could be put | 8 |
|
| 15 | they could be give | 6 |
|
| 16 | they could be find | 5 |
|
| 17 | they could be improved | 5 |
|
| 18 | they could be given | 5 |
|
| 19 | they could be found | 5 |
|
| 20 | they could be bring | 5 |
|
| 21 | they could be improve | 5 |
|
| 22 | they could be brought | 5 |
|
