| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [noun sg] [v-ing] | 6650 |
|
| 2 | for a [noun sg] [verb] | 3107 |
|
| 3 | for [art] [noun sg] [v-ing] | 932 |
|
| 4 | for a [noun] [v-ing] | 537 |
|
