Question

The principal will announce the name of winning candidate change into present perfect tense​

Answer 1

Articles

Articles also modify the nouns. So, articles are also adjectives. Articles determine the specification of nouns. ‘A’ and ‘an’ are used to refer to an unspecific noun, and ‘the’ is used to refer to a specific noun.  

Examples:

A cat is always afraid of water. (Here, the noun ‘cat’ refers to any cat, not specific.)

The cat is afraid of me. (This cat is a specific cat.)