| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [pron] to do is [prep] | 7 |
|
| 2 | [pron] [vb base] to do is [prep] | 15 |
|
| 3 | [pron] [verb] to do is [prep] | 15 |
|
| 4 | [pron] have to do is [prep] | 7 |
|
| 5 | [pron] have to do is [prep] | 7 |
|
| 6 | [pron] to do is [verb] [prep] | 8 |
|
