| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] be extended to [adj] | 9 |
|
| 2 | [vb -s] been extended to [adj] | 8 |
|
| 3 | has [be] extended to [adj] | 8 |
|
| 4 | [vb -s] [been] extended to [adj] | 8 |
|
