| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they are [v-ing] [prep] | 900 |
|
| 2 | are [v-ing] [prep] [num] | 130 |
|
| 3 | they are [prep] [num] | 41 |
|
| 4 | they are [v-ing] [num] | 23 |
|
