1. Negative Prefixes

2. Lets Talk About Some Rules 

3. Un-
Not – The opposite of
Happy Unhappy

4. Im- Not – The opposite of
It is added to words that always begin with the letter m or p.
Perfect Imperfect
Possible Impossible
Moral Immoral

5. In- Not – The opposite of
It is added to words that can begin with a vowel (except i or u) or a consonant.
Accurate Inaccurate
Organic Inorganic

6. Il- Not – The opposite of
It is added to words that always begin with the letter L.
Legal Illegal
Logical Illogical

7. Dis-
Not – The opposite of.
Connect Disconnect
Agree Disagree

8. Ir- Not – The opposite of.
It is added to words that always begin with the letter r.
Rational Irrational
Regular Irregular