| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is perhaps [adv] [vb pp] [prep] [v-ing] | 9 |
|
| 2 | is perhaps best [verb] [prep] [v-ing] | 8 |
|
| 3 | is perhaps [adv] [verb] by [v-ing] | 5 |
|
