40 . look at the verbs. give the second and the third forms. write them into 2 columns: regular verbs and irregular verbs. discover, sail, be intertsted (in), appear, prepare, smoke, depend (on). fight, sell.

Regular: discover;sail;was/were;interest;appear;prepare;smoke;depend;fought;sold Irregular: discovered; sailed; been; interested; appeared; prepared; smoked; depended; fought; sold

1 колонка :
Discover discovered
Sail sailed
Appear appeared
Prepare prepared
Smoke smoked
Depend on
2 колонка:
Be interested in was interested in been interested in
Fight fought fought
Sell sold sold