| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [art] major [noun sg] | 111 |
|
| 2 | [vb -s] been a major [noun sg] | 104 |
|
| 3 | [vb -s] been [art] major factor | 17 |
|
| 4 | [vb -s] been the major [noun sg] | 6 |
|
| 5 | [vb -s] been [art] major cause | 5 |
|
