| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | never heard [prep] | 55 |
|
| 2 | never heard of | 43 |
|
| 3 | never heard of | 43 |
|
| 4 | never heard from | 10 |
|
| 5 | never heard from | 10 |
|
