tremular angolul

flap [flapped, flapping, flaps]▼(to move loosely back and forth)
verb
[UK: flæp] [US: ˈflæp]

flicker [flickered, flickering, flickers]▼(to burn or shine unsteadily)
verb
[UK: ˈflɪkə(r)] [US: ˈflɪkər]

flutter [fluttered, fluttering, flutters]▼(to flap or wave quickly)
verb
[UK: ˈflʌ.tə(r)] [US: ˈflʌ.tər]