Englishfor English speakers
is
Verb
—
A form of the verb be when talking about someone or something else.
He is late for class.
Is it hot in here?
valid
Adjective
—
If something is valid, it is correct, appropriate, and acceptable.
I'm sorry sir, your driver's license is not valid.
I think we should listen to her. She makes a valid argument.
To log in, you need a valid password.