1. use a capital letter for the personal pronoun 'i':
what can i say?
2. use a capital letter to begin a sentence or to begin speech:
the man arrived. he sat down.
suddenly mary asked, "do you love me?"
3. use capital letters for many abbreviations and acronyms:
g.m.t. or gmt (greenwich mean time)
n.a.t.o. or nato or nato (north atlantic treaty organization)
4. use a capital letter for days of the week, months of the year, holidays:
monday, tuesday
january, february
christmas
armistice day
5. use a capital letter for countries, languages & nationalities, religions:
china, france
japanese, english
christianity, buddhism
6. use a capital letter for people's names and titles:
anthony, ram, william shakespeare
professor jones, dr smith
captain kirk, king henry viii
7. use a capital letter for trade-marks and names of companies and other organizations:
pepsi cola, walkman
microsoft corporation, toyota
the united nations, the red cross
8. use a capital letter for places and monuments:
london, paris, the latin quarter
the eiffel tower, st paul's cathedral
buckingham palace, the white house
oxford street, fifth avenue
jupiter, mars, syrius
asia, the middle east, the north pole
9. use a capital letter for names of vehicles like ships, trains and spacecraft:
the titanic
the orient express, the flying scotsman
challenger 2, the enterprise
10. use a capital letter for titles of books, poems, songs, plays, films etc:
war and peace
if, futility
like a virgin
the taming of the shrew
the lion king, gone with the wind
11. use capitals letters (sometimes!) for headings, titles of articles, books etc, and newspaper headlines:
how to win at poker
chapter 2: clinton's early life
life found on mars!
man bites dog