| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] have heard | 337 |
|
| 2 | [modal v] have heard | 330 |
|
| 3 | would have heard | 79 |
|
| 4 | must have heard | 76 |
|
| 5 | must have heard | 76 |
|
| 6 | would have heard | 62 |
|
| 7 | may have heard | 54 |
|
| 8 | may have heard | 54 |
|
| 9 | will have heard | 49 |
|
| 10 | will have heard | 34 |
|
| 11 | might have heard | 28 |
|
| 12 | might have heard | 28 |
|
| 13 | should have heard | 25 |
|
| 14 | should have heard | 25 |
|
| 15 | could have heard | 24 |
|
| 16 | could have heard | 24 |
|
| 17 | 'd have heard | 17 |
|
| 18 | 'll have heard | 15 |
|
| 19 | [modal v] 've heard | 7 |
|
