The article:
Definition: It is a part of the sentence that is placed in front of the noun to indicate gender, number or if the noun is identifiable to the listener.
Types:
- Definite article: IndicatesIt indicates that its noun is a particular one (or ones) identifiable to the listener. Examples: el, la, lo, los, las
- Indefinite article: Indicates It indicates that its noun is not a particular one (or ones) identifiable to the listener. Examples: un, una, unos, unas
- Contracted article: Is the union established between the article "el" and the prepositions "a" and "del". Examples: "al" = "a" + "el"; "del" = "de" + "el".
- Neutral article: It is used when you refer to abstract nouns. Example: lo, los
why in the first sentence 'al' follows jugar?
The article "al" follows jugar because the articles are always placed in front of the noun.
Ok, so I know you can't say 'a el' this changes to al so the second example makes sense
The article "al" as explained above, is the the union of "a" and "el", thisthat is why it is incorrect to write "Me gusta jugar a el fútbol".