It's easy to learn English. Because there are only 26 letters in English. All the words and sentences are part of these 26 letters.
Man expresses his ideas and feelings through sounds and signs. Those who can hear and speak make use of sounds and signs. Those who cannot hear and speak make use of only signs.
In different parts of the world each distinct sound is denoted by a particular sign or letter. By grouping different letters words are formed. By grouping different words sentences are formed.
There are 26 letters in the English alphabet.
Among these 26 letters, 5 are "vowels" and the rest are "consonants".
A,E,I,O and U are called 'Vowels' because each of them has a particular sound.
And the others are called 'Consonants' because each of them does not have a particular sound of its own.