MODAL VERBS

MODAL VERBS

General characteristics

General Characteristics

1. They are followed by infinitive without to.

2. They don´t take the -s for third person singular.

3. They don´t use auxiliaries for questions or negatives.

CATEGORIES

ABILITY

1. CAN FOR PRESENT

2. COULD FOR THE PAST

3. BE ABLE TO PARA RESTO DE TIEMPOS

PROBABILITY

• MAY

• MIGHT

OBLIGATION

MUST: OBLIGACIONES PERSONALES EN PRESENTE

HAVE TO: OBLIGACIONES EXTERNAS EN PRESENTE Y OBLIGACIONES EN EL RESTO DE TIEMPOS

NEED TO: MILD OBLIGATION

PROHIBITION

MUSTN´T

ADVICE

• SHOULD

• OUGHT TO

• HAD BETTER

DEDUCTION

MUST

CAN´T

SUGGESTION

• SHALL

PERFECT MODAL VERBS