| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] could have be | 939 |
|
| 2 | [pers pn] could have been | 937 |
|
| 3 | it could have be | 484 |
|
| 4 | he could have be | 154 |
|
| 5 | they could have be | 81 |
|
| 6 | she could have be | 78 |
|
| 7 | i could have be | 67 |
|
| 8 | you could have be | 35 |
|
| 9 | we could have be | 32 |
|
| 10 | them could have be | 6 |
|
