| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] are [v-ing] [prep] a | 18 |
|
| 2 | [adj] [am/are] [v-ing] [prep] a | 18 |
|
| 3 | [det] [am/are] [v-ing] [prep] a | 8 |
|
| 4 | [num] [am/are] [v-ing] [prep] a | 5 |
|
| 5 | [adj] [am/are] [v-ing] [prep] a | 5 |
|
