| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [prep] course [det] | 21 |
|
| 2 | is [prep] course [det] | 21 |
|
| 3 | is of course [det] | 21 |
|
| 4 | is of course [det] | 21 |
|
| 5 | is [prep] course that | 12 |
|
| 6 | is [prep] course another | 5 |
|
