| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but it is [adv] [prep] [v-ing] | 21 |
|
| 2 | but it is [adv] [prep] [verb] | 21 |
|
| 3 | but it is [adv] worth [verb] | 19 |
|
| 4 | but it is perhaps [prep] [verb] | 5 |
|
