teacher Denise Moraes
We use must to talk about rules and obligations
must doesn’t change with the subject C
after must the verb is in the base form
must doesn’t exist alone as a verb, and needs another one to make sense
Affirmative structure noun / verb in the + must + pronoun base form
affirmative singular
affirmative plural
I
We
You
You
He
She
must
must
They
It
teacher Denise Moraes
We use mustn’t to say something is forbidden
mustn’t doesn’t change with the subject
after mustn’t the verb is in the base form
mustn’t doesn’t exist alone as a verb, and needs another one to make sense
Negative structure noun / + mustn’t pronoun
+
must + not
negative singular
negative plural
I
We
You
You
He
mustn’t
She
verb in the base form
mustn’t They
It
teacher Denise Moraes
We use must in questions to ask for permission
in the interrogative form must goes before the noun/pronoun
You don’t use do/does/did in questions with must
Short answers
Yes, you must No, you mustn’t
Interrogative structure Must
+
noun / verb in the + pronoun base form
interrogative singular
Must
interrogative plural
I?
we?
you?
you?
he? she?
Must they?
it?
teacher Denise Moraes
Grammar Vocabulary Games Online classes
teacher Denise Moraes catteacher.com.br