| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] have to do is [prep] | 7 |
|
| 2 | [pers pn] have to do is [prep] | 7 |
|
| 3 | you have to do is [prep] | 5 |
|
| 4 | you have to do is [prep] | 5 |
|
| 5 | have to do is [verb] [prep] | 30 |
|
| 6 | have to do is [vb infin] [prep] | 23 |
|
| 7 | have to do is [to-vb] [prep] | 6 |
|
| 8 | have to do is look [prep] | 5 |
|
