BC 1000 or 1000 bc or bc 1000 or 1000 b.c. or b.c. 1000

[Tung Quoc]

Dear teachers,

Normally, we write: 1000 BC or 76 AD.

1/Can I write as in follows?

a. BC 1000 or 1000 bc or bc 1000 or 1000 b.c. or b.c. 1000
b. AD 76 or 76 ad or ad 76 or 76 a.d. or a.d. 76

2/BC and BCE have the same meaning in:
1000 BC and 1000 BCE ?

AD and CE have the same meaning in:
76 CE and 76 CE ?

3/Can I write as in follows?

c.BCE 1000 or 1000 bce or bce 1000 or 1000 b.c.e. or b.c.e. 1000

d.CE 76 or 76 ce or ce 76 or 76 c.e. or c.e. 76

Best regards
Tung Quoc

[Yankee]

Hi Quoc

My comments are in the quote in blue: