Răspuns :
sleep- slept-slept
put-put-put
be- was\were-been
begin- began- begun
cut-cut-cut
put-put-put
be- was\were-been
begin- began- begun
cut-cut-cut
a=b=c : read-read-read
a=c#b : come-came-come
a#b#c : drink-drank-drunk
b=c#a : feel-felt-felt
a=c#b : come-came-come
a#b#c : drink-drank-drunk
b=c#a : feel-felt-felt