| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | about [noun prp] [be] | 238 |
|
| 2 | know [noun prp] [be] | 92 |
|
| 3 | know about [noun prp] | 51 |
|
| 4 | know about [be] | 7 |
|
