I know that when two subjects are connected using "and", we need to use the plural form, as in:
He and I are good friends.
Are there any exceptions? I am asking this because I came across this sentence:
- He and my dad believes that mom is always right.
There is another kind of sentence like:
Each boy and each girl has submitted his/her form.
Every boy and every girl has submitted his/her form.
If I made any grammatical mistakes on the question, please mention it in the comments.