| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [prep] [pron] [is] [adv] [vb pp] | 9 |
|
| 2 | [v-ing] [prep] what [is] [adv] [verb] | 8 |
|
| 3 | [v-ing] [prep] [Wh det] [is] [adv] [verb] | 8 |
|
| 4 | [v-ing] [prep] what [is] [adv] [verb] | 8 |
|
| 5 | [v-ing] [prep] [pron] is [adv] [verb] | 7 |
|
| 6 | [v-ing] [prep] [pron] 's [adv] [verb] | 6 |
|
