| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] better do [adj] | 9 |
|
| 2 | have better do [adj] | 9 |
|
| 3 | 'd better do [adj] | 9 |
|
| 4 | [verb] better do [det] | 8 |
|
