r3 vs r4
......
1010
* make-made-made
1111
* know-knew-known
1212
* swim-swam-swum
13
* choose-chose-chosen
14
* run-ran-run
15
* eat-ate-eaten
16
* take-took-taken
17
* write-wrote-written
18
* see-saw-seen
19
* be-was/were-been
20
* think-thought-thought
21
1322
[[분류:영어]]