| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] have [adv] heard of | 50 |
|
| 2 | [noun] [Wh pn] have [adv] heard | 26 |
|
| 3 | [Wh pn] have [adv] heard of | 21 |
|
| 4 | [noun] [Wh pn] have heard of | 6 |
|
