| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | in [noun sg] [noun] [prep] [art] | 1650 |
|
| 2 | engage in [noun] [prep] [art] | 53 |
|
| 3 | engage in [noun sg] [prep] [art] | 42 |
|
| 4 | engage in [noun sg] [noun] [prep] | 27 |
|
