| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | do [vb infin] a problem | 33 |
|
| 2 | do have a problem | 22 |
|
| 3 | do have a problem | 22 |
|
| 4 | do [verb] a problem | 14 |
|
| 5 | did [verb] a problem | 11 |
|
| 6 | does [verb] a problem | 8 |
|
