Adverbs and adjectives are similar because they describe something by modifying other words, called nouns and verbs. Whether these descriptive words are called adverbs or adjectives depend on which kind of words they modify.
There are many types of conjugations: present, past, past perfect, future etc. Each type will change depending on the state of action and who or what is being acted upon.
It is a well-known fact that good grammar is important for writing. It ensures clarity of meaning, reduces ambiguity and communicates thoughts more precisely.
The proper use of grammar is an important skill for many reasons. When you’re writing to someone else, you want them to be able to understand what you’re trying to say.