You are probably right.

English as a Second Language English Vocabulary, Grammar and Idioms
1

probably

Meaning:
: very likely : almost certainly

  • It will probably rain today.
  • They will probably be here soon.
  • You are probably right.
  • It was probably the best concert I’ve ever been to.
  • There were probably about 150 people at the wedding.
  • “Are you going to the picnic?” “Probably.”
  • “Can you finish painting the room today?” “Probably not.”
  • You are probably right.
  • You probably are right.
    Are both good?
2

The first is correct. The second is used but ‘probably’ is placed between the pronoun and the main verb, which is poor usage.

3

Hi, Tofu

As far as I know the adverb comes before the main verb in a positive sentence:
It will probably rain today.
You are probably working too hard.
I’ll almost certanly see you next week.

But when to be is a main verb (not an auxiliary) the adverb comes after it:
There were probably about 150 people at the wedding.
You are probably right.
I was defenitely at home at 10.30

The adverb comes before the auxiliary verb in a negative sentence.
I definitely didn’t tell her.
She probably isn’t working hard enough.

I’m not a native speaker, but according to the rules the sentence You are probably right is probably correct and the second probably isn’t correct.

4

Geo, you explained it far better than me!

5

Prynhawn da Beeesneees,

I’m trying to do my best and now
Rydw i’n dysgu Cymraeg.

6

Bore da i chi, Geo.
Mae’n trawuadol iawn!

[size=75]Trawuadol = impressive[/size]

7

Thank you, B and Geo.

8

Hi Tofu,

Agreeing all above, I would point out that ‘You probably are right’ (putting the adverb first) indicates a certain hesitation in expressing the probability.

Alan