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<iframe name="ngram_chart" src="https://books.google.com/ngrams/interactive_chart?content=doublecheck,double+check,double-check&year_start=1800&year_end=2019&corpus=26&smoothing=3" width=900 height=500 marginwidth=0 marginheight=0 hspace=0 vspace=0 frameborder=0 scrolling=no></iframe>
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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
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1800
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2019
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English (2019)
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check
English
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American English
check
British English
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Chinese
check
English Fiction
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French
check
German
check
Hebrew
check
Italian
check
Russian
check
Spanish
check
English
2019
Case-Insensitive
Smoothing
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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
info
Replaced
double-check
with
[double - check]
to match how we processed the books.
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doublecheck
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1800 - 1954
1955 - 1975
1976 - 1981
1982 - 2011
2012 - 2019
English
double check
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1800 - 1883
1884 - 1944
1945 - 1954
1955 - 2010
2011 - 2019
English