| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [prep] a large extent | 35 |
|
| 2 | [is] [prep] a [adj] extent | 29 |
|
| 3 | [is] [prep] a large [noun] | 27 |
|
| 4 | [is] [prep] [art] large extent | 13 |
|
| 5 | [is] [prep] a large extent | 13 |
|
| 6 | [is] [prep] [art] large extent | 13 |
|
