| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | for [verb] | 37947 |
|
| 2 | for [v-ing] | 36206 |
|
| 3 | [prep] keeping | 1948 |
|
| 4 | [prep] keeping | 1948 |
|
| 5 | for keep | 299 |
|
| 6 | for keeping | 288 |
|
