| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | course you must | 21 |
|
| 2 | thing you must | 10 |
|
| 3 | time you must | 7 |
|
| 4 | case you must | 6 |
|
| 5 | question you must | 5 |
|
| 6 | insurance you must | 5 |
|
