| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] what they 're [v-ing] for | 13 |
|
| 2 | know what they 're [v-ing] for | 9 |
|
| 3 | [vb infin] what they 're [v-ing] for | 7 |
|
| 4 | [prep] what they 're [v-ing] for | 7 |
|
| 5 | [prep] what they 're [v-ing] for | 7 |
|
| 6 | know what they 're [v-ing] for | 5 |
|
| 7 | what they 're [v-ing] [verb] for | 6 |
|
| 8 | what they 're [v-ing] [to-vb] for | 6 |
|
