A certain native American teacher said that "we have to use 'English skills' with 'skills' in its plural form"
He said "It is wrong to say 'English skill'".
However, in dictionary, "skill" could be countable or uncountable noun
[uncountable] the ability to do something well The job requires skill and an eye for detail. skill in/at something/doing something What made him remarkable as a photographer was his skill in capturing the moment.
[countable] a particular ability or type of ability We need people with practical skills like carpentry. management skills
So, listening skills or listening skill?
When do we have to use "skills" (plural form)?