at
at six o´clockat
at midnightat Christmas
at the weekend

on
on Saturday
on Monday morning
on Christmas Day
on January 18

in
in the morning
in December
in summer
in 1985
in two weeks´time

no preposition
today
yesterday
tomorrow
last night
next month
yesterday evening
this evening
tonight


a
 singulatr, počitatelné, prvýkrát spomínané
 profesie
 počet (a pair, a little...)
 what+počit. pod. m. (what a lovely day)
the
 singular/plural, počit./nepočit., ked už vieme o čom hovoríme
 rieky, moria, hotely, puby, divadla, musea, noviny
 keď je ojedinelý (the Queen, the sun)
 3. stupeň
 nepužívame pred častami tela (his leg)
no article
 plural a nepočit. ked hovorime o tom všeobecne (i like potatoes)
 kryjiny, mestá, ulice, jazyky, čysopisy, jedlá, letiská, stanice, hory
 at home, by bus, at/to work ...
 what + nepočit. (what beautiful weather).