| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] [v-ing] [prep] [noun sg] | 193 |
|
| 2 | [Wh pn] is [adv] [v-ing] [prep] | 49 |
|
| 3 | [Wh pn] is [v-ing] [prep] [noun sg] | 35 |
|
| 4 | [Wh pn] is [adv] [prep] [noun sg] | 33 |
|
| 5 | [Wh pn] is [adv] [v-ing] [noun sg] | 7 |
|
