| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [am/are] [v-ing] [prep] this | 260 |
|
| 2 | [am/are] [v-ing] on [adj] | 195 |
|
| 3 | [be] [v-ing] on this | 113 |
|
| 4 | [am/are] [v-ing] on [det] | 102 |
|
| 5 | [am/are] [verb] on this | 72 |
|
| 6 | [am/are] [v-ing] on this | 37 |
|
