grammar is the mechanics of the language and conversation is just two or more people talking to each other
now a days grammar is very important , one to other person to speak conversation only
In grammar, comparative grammar typically uses "as" or "than" and compares things that may or may not be similar to show key differences. Contrast compares opposite things and is used to emphasize qualities of either of the two topics being compared.
one is visual and the other is aural
It depends on context. For example, in a conversation between two people: Person #1: Those items are not for sale. Person #2: Which are? In that context, it is understood that "Which are?" means "Which items are for sale?"
Yes, "he butts in" is correct grammar, although it is somewhat informal language.
Some linguists use the term thematic role for the names (and concepts) of the semantic cases in case grammar. Please see related question.
There aren't any differences. Patio conversation sets are the same as a patio furniture set. In fact some items will describe it as a patio conversation furniture set.
Sometimes it is hard to have a conversation with your mother because of the differences of opinion that tend to happen between a parent and child. It is important to keep the lines of communication open.
No, and you already did by typing that lowercase 'I'.
When you directly translate something it does not always make sense, where as when you translate something with the proper grammar it will be easily understandable and most languages have variations of grammar.
The correct grammar is "Between you and me."
implicit grammar is learned naturally without effort as toddlers through conversation and exposure to the language. explicit grammar is learned in the classroom when someone makes a conscious effort to learn a language.