| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | did they [verb] | 1264 |
|
| 2 | did they [vb infin] | 1236 |
|
| 3 | did [pron] think | 475 |
|
| 4 | [verb] they think | 142 |
|
| 5 | do they think | 96 |
|
| 6 | [vb past] they think | 32 |
|
| 7 | did they think | 30 |
|
