| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] [adv] [verb] [prep] recent [noun] | 29 |
|
| 2 | [been] extensively [verb] [prep] [adj] [noun] | 15 |
|
| 3 | [been] extensively [verb] [prep] [adj] [noun] | 11 |
|
| 4 | [been] extensively [verb] [prep] recent [noun] | 6 |
|
| 5 | [be] extensively [verb] [prep] recent [noun] | 6 |
|
| 6 | [been] extensively [verb] [prep] recent [noun] | 6 |
|
