| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [v-ing] [adv prt] [to-vb] [art] | 80 |
|
| 2 | before [v-ing] [adv] [to-vb] [art] | 64 |
|
| 3 | before [v-ing] [adv prt] [verb] [art] | 55 |
|
| 4 | before [verb] [adv prt] [to-vb] [art] | 53 |
|
