Yes, you can:
For example
... Afterwards, I was so happy that I jumped for joy....
... After, none of us had any words left. Just tears...
Two quotes from two books.
I cried so hard I got a headache afterwards.
No, you cannot start a sentence with "no" unless you need to do so. No reason exists not to start a sentence with that word, as you can see. No one will care if you do start a sentence with it.
Yes. 'Thus' is another word for 'therefore'. Thus the sentence you start of with 'thus' should be an explanatory sentence.
it is a sentence when you start a sentence with 3 words what end in ed
Yes, certainly you can. Then you can start writing.
We ate lots of cake, and afterwards we went home.
Hovering a word in a sentence make it easy to find afterwards.
If you mean "afterwards", then it would be something like, "We went to the store and afterwards, to the movies."
Yes.
I cried so hard I got a headache afterwards.
No, you cannot start a sentence with "no" unless you need to do so. No reason exists not to start a sentence with that word, as you can see. No one will care if you do start a sentence with it.
You can use "afterwards" to indicate something that happens after a particular event or time. For example, "She finished her work, and afterwards, she went for a walk in the park."
Yes, I can start a sentence with "Is."
'Dennis decided to play his computer game and deal with his homework afterwards.'
You can start a sentence with "Also"
You start a sentence with whatever word you need to start it with. A sentence can start with "A" if it needs to. A sentence just needs to make sense.
Yes, a quote form Shakespeare will tell you that you can start a sentence with to. :To be, or not to be?