niether am I

[smelvanzq]

If someone say "I am not happy" and I want to say that I am not happy too can I say "neither am I"?

If someone say "I am happy" and I want to say that I am happy too can I say "and so am I"?

If someone say "I am not happy" and I want to say that I am happy should I say "I am"?
thanks teacher! please check my grammar too. Thanks

 

[fighting spirit]

Yes, you are right.
But you need -s suffix added to the verb after someone.
If someone says

 

[smelvanzq]

Yes, you are right.
But you need -s suffix added to the verb after someone.
If someone says

Thanks for the correction.

 

[Barb_D]

You may also here some other variations.

I'm not happy.
I'm not either.
Neither am I.
Me neither. (informal)

I'm happy
Me too
I am too.
So am I.

I'm not happy.
Oh, I'm sorry. I am.

I'm happy.
I'm not.