Will will sign the will.
It should be --- Then I said, "Why do I sign?"
A mathematical sentence that contains an equals sign would be called an equation.
Example sentence - The road sign gave the mileage to the next three cities.
A mathematical sentence that uses an equal sign to explain the equality of two amounts is called an equation.
doesn't
Exclamatory sentence . because ! sign is used for exclamatory sentence
He gave me a sign to come over.I will sign to her.You need to sign this paper.
sign
yes you can, eg I like to sign cards.
a number sentence.
They had to sign the document.