MODAL VERBS IN THE PAST

OBLIGATION	HAD TO (TUVE QUE)	IT WAS COMPULSORY	·          IN THE PAST WOMEN HAD TO WEAR ONLY SKIRTS
NO OBLIGATION	DIDN'T HAVE TO (NO TUVE QUE .../ NO TENÍA QUE...)	IT WAS NOT OBLIGATORY	·          LAST YEAR WE DIDN'T HAVE TO BUY A BOOK IN ENGLISH
NECESSITY	NEEDED TO + INF (NECESITÉ...)	IT WAS NECESSARY	·          IN THE PAST WE PEOPLE NEEDED TO CUT WOOD TO HEAT HOUSES.
NO NECESSITY	DIDN'T NEED TO (NO NECESITÉ)	IT WAS NOT NECESSARY	·          LAST YEAR WE DIDN'T NEED TO BRING A DICTIONARY TO CLASS
ABILITY	COULD (PODÍA / SABÍA) WAS/WERE ABLE TO (ERA CAPAZ DE ...)	I KNEW HOW TO DO IT	·          WHEN I WAS LITTLE I COULD COUNT BACKWARDS ·          FINALLY, REAL MADRID WAS ABLE TO WIN THE MATCH.