| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | do [adv] [vb infin] | 183235 |
|
| 2 | [adv] [vb infin] whether | 1899 |
|
| 3 | do [vb infin] whether | 32 |
|
| 4 | do [adv] whether | 30 |
|
