Solutions :

Boggle I L F C G V U I I U L E E Q I N

3-letter words (1 point): 22

CUE; FIE; FIL; FLU; GIE; GUE; GUL; GUV; LEI; LEU; LIE; LIG; LIN; LUG; LUV; NIE; NIL; ULE; ULU; VIE; VIG; VUG.

4-letter words (1 point): 17

CIEL; CUIF; FILE; FLUE; FUCI; FUEL; GLUE; GULE; IGLU; LIEN; LIEU; LINE; LULU; NEIF; QUIN; VLEI; VULN.

5-letter words (2 points): 3

GUILE; QUINE; VIGIL.

6-letter words (3 points): 2

EQUINE; LIGULE.