| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | reason for [det] [noun sg] is [that] | 19 |
|
| 2 | reason for [det] [noun sg] [is] that | 19 |
|
| 3 | reason for [det] [noun sg] [is] [that] | 19 |
|
| 4 | reason for this [noun sg] [is] [that] | 17 |
|
