| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | there has been a [n mass] [noun] | 6 |
|
| 2 | there has [been] a [n mass] [noun] | 6 |
|
| 3 | there has be a [n mass] [noun] | 6 |
|
| 4 | there has [be] a [n mass] [noun sg] | 6 |
|
| 5 | there has [be] a [n mass] [noun] | 6 |
|
