| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] [v-ing] the [n mass] | 9 |
|
| 2 | [vb -s] [v-ing] a [n mass] | 5 |
|
| 3 | involves [v-ing] [art] [n mass] | 5 |
|
