Books Ngram Viewer
Share
Download raw data
Share
code
Embed chart
Facebook
X
Embed Chart
<iframe name="ngram_chart" src="https://books.google.com/ngrams/interactive_chart?content=have+proved+to/have+proven+to,have+proved+true/have+proven+true,have+proved+false/have+proven+false&year_start=1900&year_end=2000&corpus=17&smoothing=10&share=&direct_url=t1;,(have%20proved%20to%20/%20have%20proven%20to);,c0;.t1;,(have%20proved%20true%20/%20have%20proven%20true);,c0;.t1;,(have%20proved%20false%20/%20have%20proven%20false);,c0" width=900 height=500 marginwidth=0 marginheight=0 hspace=0 vspace=0 frameborder=0 scrolling=no></iframe>
content_copy
Copy
Part-of-speech tags
cook_VERB, _DET_ President _PROPN_
Wildcards
King of *, best *_NOUN
Inflections
shook_INF drive_VERB_INF
Arithmetic compositions
(color /(color + colour))
Corpus selection
I want:eng_2019, I want:eng_2009
Close
View All options
1900
-
2000
arrow_drop_down
Choose years
to
Cancel
Apply
American English (2012)
arrow_drop_down
Choose corpus
check
English
check
American English
check
British English
check
Chinese
check
English Fiction
check
French
check
German
check
Hebrew
check
Italian
check
Russian
check
Spanish
check
American English
2012
Case-Insensitive
Smoothing of 10
arrow_drop_down
Choose Smoothing
check
0
check
1
check
2
check
3
check
4
check
5
check
6
check
7
check
8
check
9
check
10
check
20
check
30
check
40
check
50
Search in Google Books
have proven to
chevron_right
1900 - 1923
1924 - 1988
1989 - 1992
1993 - 1996
1997 - 2000
English
have proved to
chevron_right
1900 - 1913
1914 - 1959
1960 - 1967
1968 - 1986
1987 - 2000
English
have proven true
chevron_right
1900 - 1911
1912 - 1919
1920 - 1925
1926 - 1996
1997 - 2000
English
have proved true
chevron_right
1900 - 1904
1905 - 1914
1915 - 1919
1920 - 1971
1972 - 2000
English
have proven false
chevron_right
1900 - 1909
1910 - 1915
1916 - 1962
1963 - 1989
1990 - 2000
English
have proved false
chevron_right
1900 - 1905
1906 - 1910
1911 - 1947
1948 - 1978
1979 - 2000
English