| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | reason for the failure | 20 |
|
| 2 | reason for the delay | 14 |
|
| 3 | reason for the existence | 10 |
|
| 4 | reason for the change | 9 |
|
| 5 | reason for the decline | 8 |
|
| 6 | reason for the difference | 8 |
|
| 7 | reason for the dismissal | 7 |
|
| 8 | reason for the increase | 7 |
|
| 9 | reason for the decision | 6 |
|
| 10 | reason for the lack | 6 |
|
| 11 | reason for the fall | 5 |
|
| 12 | reason for the rise | 5 |
|
| 13 | reason for the choice | 5 |
|
| 14 | reason for the growth | 5 |
|
| 15 | reason for the attack | 5 |
|
