| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv prt] at [adj] intervals | 25 |
|
| 2 | [adv prt] at [adj] interval | 25 |
|
| 3 | [adv prt] at regular interval | 11 |
|
| 4 | off at [adj] interval | 8 |
|
| 5 | out at [adj] interval | 7 |
|
