| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [to-vb] at regular | 7 |
|
| 2 | [to-vb] at regular [noun pl] | 7 |
|
| 3 | [to-vb] at regular [noun] | 7 |
|
| 4 | [to-vb] at regular intervals | 6 |
|
| 5 | [to-vb] at regular interval | 6 |
|
