Englishfor English speakers
hrát si do ruky
si
—
noun
(= ti)
the syllable naming the seventh (subtonic) note of any musical scale in solmization
Si
—
noun
(= silicon)
a tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors
SI
—
noun
(= Systeme International d''Unites, Systeme International)
a complete metric system of units of measurement for scientists; fundamental quantities are length (meter) and mass (kilogram) and time (second) and electric current (ampere) and temperature (kelvin) and amount of matter (mole) and luminous intensity (candela)
Today the United States is the only country in the world not totally committed to the Systeme International d'Unites
do
Verb
—
Do is an auxiliary verb. It is used in questions, negative statements, short answers, and for emphasis when there is no other auxiliary.
—
Questions
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Where do you live?
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When did you start learning English?
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"Does John live here?"
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Short answer
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"Yes, he does."
—
"No, I don't."
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Negative statements
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They don't live here. [don't = do not]
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We do not want to fight.
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Jared did not tell me he had such a pretty sister.
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Emphasis (do not use this too much)
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You think I don't have a brother, but I do!
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She does enjoy swimming in the pool.
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We sometimes use do in place of a different verb, such as when we do not know what an activity is, or we do not want to say it again:
What is he doing?
Mary eats more than John does.
do
Verb
—
When you do something, you perform, complete or work on a task.
Mary is doing her homework.
We all did the cleaning together.
I've got a lot to do.
"What do you do?" - "I'm a baker."
—
To succeed or progress
"How did John do in the tennis match?" - "He lost."
"How is your leg doing?" - "Oh, it feels much better, thank you."
—
To write or draw something, usually in a short time
He did a picture of a tree.
He did an essay on Shakespeare.
do
Noun
—
A do refers to a hairstyle.
She came to work with a new do.
—
Correct actions. (almost always in plural and generally with "don'ts")
Willy will tell you all the dos and don'ts.