| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [prep] course [adj] | 153 |
|
| 2 | is [prep] [noun] [det] | 81 |
|
| 3 | [be] [prep] course [det] | 47 |
|
| 4 | be [prep] course [det] | 47 |
|
| 5 | is [prep] course [det] | 21 |
|
| 6 | [is] [prep] course [det] | 21 |
|
