| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] been [vb pp] [prep] some [noun pl] | 68 |
|
| 2 | [vb -s] [been] [vb pp] [prep] some [noun pl] | 68 |
|
| 3 | has [been] [vb pp] [prep] some [noun pl] | 63 |
|
| 4 | [vb -s] [been] [vb pp] in some [noun pl] | 30 |
|
| 5 | [vb -s] [been] [vb pp] in some [noun pl] | 30 |
|
| 6 | [vb -s] [been] [vb pp] by some [noun pl] | 24 |
|
| 7 | [vb -s] [been] [vb pp] by some [noun pl] | 24 |
|
| 8 | [vb -s] [been] [vb pp] for some [noun pl] | 11 |
|
| 9 | [vb -s] [been] [vb pp] for some [noun pl] | 11 |
|
| 10 | [vb -s] [been] [vb pp] [prep] some years | 8 |
|
| 11 | [vb -s] [been] [vb pp] [prep] some studies | 6 |
|
| 12 | 's [been] [vb pp] [prep] some [noun pl] | 5 |
|
| 13 | [vb -s] [been] [vb pp] [prep] some writers | 5 |
|
