| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | know what they have do | 18 |
|
| 2 | know what they have done | 12 |
|
| 3 | know what they 've do | 8 |
|
| 4 | know what they have do | 7 |
|
| 5 | know what they have to do | 6 |
|
| 6 | know what they have do | 6 |
|
