I was happy about being invited to my friend's birthday.
THA AND
They are both happy. NOT They is both happy.
It's an adjective.
I am happy to show you that. When I am happy, I show it.
Happy is an adjective.
Why is it that you are not happy to do your own home work
You were very happy yesterday
I think that you would write: Hi Julie! Happy New Year!
Are
I was happy and exited. there :)
The word "not" is commonly used to make a sentence negative. For example, "I am happy" becomes "I am not happy" when "not" is added.
"happy to help her" does not contain a form of be and is not a sentence. There is no subject or verb.The future tense of be is will be for all persons, singular and plural.I/We/You/He/She/They will be happy to help her.
The verb in the sentence "Your sister is a happy person" is is (a form of the verb to be). To put this sentence in the future tense, you would say, "Your sister will be a happy person."