| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [vb pp] on a | 90 |
|
| 2 | has embarked on a | 16 |
|
| 3 | has opened on a | 7 |
|
| 4 | has begun on a | 6 |
|
| 5 | has [vb pp] on an | 5 |
|
| 6 | has decided on a | 5 |
|
