Respuesta:
1.- walk + -ed
enjoyed
visited
painted
stayed
worked
watched
entered
catched
walked
(no llegué a leer el verbo que está al lado de "receive", el de color marrón)
2.- receive + -d
arrived
lived
tasted
received
3.- study + -ied
tried
cried
studied
4.- stop + p + -ed
stopped
Espero que te sirva
