| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been a major [noun] | 169 |
|
| 2 | [verb] been a major [noun sg] | 168 |
|
| 3 | [vb -s] been a major [noun] | 105 |
|
| 4 | has been a major [noun] | 103 |
|
| 5 | had been a major [noun] | 28 |
|
| 6 | [vb past] been a major [noun] | 28 |
|
| 7 | [verb] been a major factor | 23 |
|
| 8 | [verb] been a major factor | 23 |
|
| 9 | [vb infin] been a major [noun] | 15 |
|
| 10 | have been a major [noun] | 15 |
|
| 11 | to have been a major [noun] | 10 |
|
| 12 | [to-vb] been a major [noun] | 10 |
|
| 13 | [vb base] been a major [noun] | 10 |
|
| 14 | have been a major [noun] | 10 |
|
| 15 | [verb] been a major source | 7 |
|
| 16 | [verb] been a major source | 7 |
|
| 17 | [verb] been a major change | 5 |
|
| 18 | [verb] been a major cause | 5 |
|
| 19 | [verb] been a major change | 5 |
|
| 20 | [verb] been a major cause | 5 |
|
| 21 | [verb] been a major problem | 5 |
|
| 22 | [verb] been a major problem | 5 |
|
