MIGHT. We might as well be strangers. Keane
MUST. The show must go on. Queen
OUGHT TO. Oughtta Know. Alanis Morrisette.
SHOULD. Should I stay or should I go? The Clash
COULD. You could be happy. Snow Patrol
CAN. Can you meet me halfway? Black Eyed Peas
Several modal verbs. In my Place. Coldplay.
Modal perfect. It must have been love. Roxette
MUST + Inf. it must be love. Madness