A Capital Letter on the first word.
Unless it is the first word in a sentence. Otherwise - no capital letter
no
what is a good sentence for the word opposite
The capital of Iowa is Des Moines. Another good sentence would be, you should always use a capital letter when writing someone's name.
A good sentence for the word baffled is:
No, unless it is the first word of a sentence.
The first word of a sentence must start with a capital letter. There are millions of ways to start a sentence!
Not unless it is the first word of a sentence.
Any sentence that properly uses the word additionally is a good sentence. Additionally, the above is a great sentence.
Your question is a good sentence using the word "common".
No, "graduated" does not need a capital G unless it is the first word in a sentence.