“And” is used to join two or more grammatically similar expressions (Reddy, 2009). For example, Mary and Jane. In case there are more than two items, ‘and’ is put before the last item. For example, we bought: books, pens, and ink. ‘and’ is also used to join two or more clauses which have a close relationship. For example, she is my guardian and my mentor too. The clauses joined by ‘and’ express relationships such as time, cause and effect, contrast and condition (Bryan, 2005). For example,
She became position one and amazed the teacher. (Cause and effect)
He is a student, and his mother is a teacher. (Contrast)
When adjectives placed before a noun in a sentence, ‘and’ is not used with such adjectives, for example, that was an interesting short story. (NOT that was an interesting and short story). However, ‘and’ is used when the adjective refers to different parts of the same thing (Stradling, 2007). For example, the photo was black and white (NOT the photo was black white).
“And” is used in the expression ‘Nice and’ which modify an adjective or adverb. ‘Nice and’ means something like “pleasantly” or “suitable.” For example, the cake was nice and sweet. (=The cake was pleasantly sweet).
To sum up, the coordinating conjunction ‘and’ has been widely used in English grammar. It has been portrayed as very significant conjunction in our daily communication.
Stradling, K. (2007). English conjunctions (Doctoral dissertation). EnglishPractice.com. https://www.englishpractice.com/improve/uses-of-and/
Reddy, M. A. (2009). English conjunctions (Doctoral dissertation). EnglishGrammar, org. https://www.englishgrammar.org/conjunctions-4/
Matthew, D. S. (2005). English conjunctions (Doctoral dissertation). Oxford University Press. https://en.wikipedia.org/wiki/Conjunction_(grammar)
Bryan, G. A. (2005). English conjunctions (Doctoral dissertation). The University of Chicago Press. P Press. https://www.grammarly.com/blog/conjunctions/