Lexical Analysis and Morphological-
The first phase of NLP is the Lexical Analysis. This phase scans the source code as a stream of characters and converts it into meaningful lexemes. It divides the whole text into paragraphs, sentences, and words.

Syntactic Analysis (Parsing)
Syntactic Analysis is used to check grammar, word arrangements, and shows the relationship among the words.
Example: Agra goes to the Poonam
In the real world, Agra goes to the Poonam, does not make any sense, so this sentence is rejected by the Syntactic analyzer.

Semantic Analysis
Semantic analysis is concerned with the meaning representation. It mainly focuses on the literal meaning of words, phrases, and sentences.

Discourse integration
Discourse describes communication between 2 or more individuals. Discourse integration analyzes prior words and sentences to understand the meaning of ambiguous language.

Pragmatic analysis
Pragmatic analysis attempts to derive the intended—not literal—meaning of language.