| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] to [be] heard [prep] [be] | 6 |
|
| 2 | have to [be] heard [prep] [be] | 6 |
|
| 3 | to [be] heard [prep] [be] [vb pp] | 7 |
|
| 4 | to [be] heard [prep] [be] [verb] | 7 |
|
