Read Collins Cobuild English Grammar Online
Authors: Collins
R66
In British English, when a two syllable verb ends in a single vowel letter followed by a single
l
, the
l
is doubled before
ing
or
ed
is added to it, even if there is no stress on the last syllable.
travel | ![]() | travelling | ![]() | travelled |
quarrel | ![]() | quarrelling | ![]() | quarrelled |
A few other verbs also have their final consonant letter doubled.
program | ![]() | programming | ![]() | programmed |
worship | ![]() | worshipping | ![]() | worshipped |
hiccup | ![]() | hiccupping | ![]() | hiccupped |
kidnap | ![]() | kidnapping | ![]() | kidnapped |
handicap | ![]() | handicapping | ![]() | handicapped |