| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [been] a [adj] | 1613 |
|
| 2 | [verb] [been] a substantial | 32 |
|
| 3 | have [been] a substantial | 32 |
|
| 4 | has [been] [art] substantial | 27 |
|
| 5 | has [been] [art] substantial | 27 |
|
| 6 | has [been] a substantial | 24 |
|
| 7 | [vb -s] [been] a substantial | 24 |
|
| 8 | has [be] a substantial | 24 |
|
