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<iframe name="ngram_chart" src="https://books.google.com/ngrams/interactive_chart?content=simultaneous,concurrent,at+the+same+time&year_start=1900&year_end=2019&case_insensitive=on&corpus=26&smoothing=3&direct_url=t4;,simultaneous;,c0;,s0;;simultaneous;,c0;;Simultaneous;,c0;;SIMULTANEOUS;,c0;.t4;,concurrent;,c0;,s0;;concurrent;,c0;;Concurrent;,c0;;CONCURRENT;,c0;.t4;,at%20the%20same%20time;,c0;,s0;;at%20the%20same%20time;,c0;;At%20the%20same%20time;,c0" 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))
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I want:eng_2019, I want:eng_2009
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1900
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2019
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English (2019)
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2019
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simultaneous
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1900 - 1921
1922 - 1979
1980 - 1987
1988 - 2006
2007 - 2019
English
concurrent
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1900 - 1917
1918 - 1986
1987 - 1994
1995 - 2004
2005 - 2019
English
at the same time
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1900 - 1908
1909 - 1918
1919 - 1928
1929 - 2005
2006 - 2019
English