| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | by [v-ing] [pron] [noun sg] [vb infin] | 10 |
|
| 2 | by [v-ing] [pos pn] [noun sg] [vb infin] | 10 |
|
| 3 | by letting [pron] [noun sg] [vb infin] | 5 |
|
