When I use to or than after modal verbs?Thanks
Modal verbs (can, could, may, might, will, shall, would, should and must) are followed by infinitive without 'to'.
Semi-modal verbs (used, ought, need, dare) are followed by a to-infinitive:
- They used to live by the sea.
- You ought to know that by now.
- Do you need to use the hairdryer?
- He didn't dare (to) look back.