Singular-plural
1.a child-...............
2.a man-...........
3.a women-..........
4.a goose-...........
5.a mouse-..........
6.a fish-............
7.a sheep-...........
8.a tooth-............
1.a child-...............
2.a man-...........
3.a women-..........
4.a goose-...........
5.a mouse-..........
6.a fish-............
7.a sheep-...........
8.a tooth-............
2.play game
3.play video game
4.eating
5.cycling
6.hiking
7.skydiving
8.singing
9.learning
10. watch tv
11. watch video
12. selfie
13. dancing
14. diving
15.sleeping
16.drawing
17.laughing
19. playing guitar
20. playing piano
21.playing drum
22. playing recording
23.browsing
24.dreaming
25. writing
man-men
women-wemen
goose-geese
mouse-mice
tooth-teeth