| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] every so often [to-vb] | 7 |
|
| 2 | [verb] every so [adv] [to-vb] | 7 |
|
| 3 | [verb] every so often [to-vb] | 7 |
|
| 4 | [verb] every so [adv] [to-vb] | 7 |
|
| 5 | [v-ing] every so [adv] [to-vb] | 6 |
|
