moreover, additionally
You can start a sentence with "Also"
also
You can't.
I don't think you can
All words are capitalized at the beginning of the sentence including am. Example: Am I the least to know about her?
If it is in the beginning of a sentence yes but other then that no
Adverbs can be used at the beginning, middle, or the end of a sentence.
Moreover, firstly, in addition, on the other hand, furthermore, nevertheless, finally, however
You capitalize the word "birthday" at the beginning of a sentence, and no other time.
One comes more toward the beginning of the sentence and the other is at the end of the sentence.
You can start your sentence with whatever word makes most sense. For example: When After On the other hand
You may use the following words depending on the sentence idea: And. In addition to. Besides. Further. Furthermore. Moreover.
When it appears at the beginning of a sentence, or in the title of something. There is no other reason to capitalize it.
The carnivorous lions were beginning to turn against each other.
Because it just dosent ---There is no reason not to begin a sentence with because or any other word.
The word because is perfectly acceptable at the beginning of an English sentence, and indeed there is no word in English that may not begin a sentence. A format that forbids because or any other English word from beginning an English sentence is irretrievably faulty.