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When should I use the perfect and imperfect tenses when talking about past actions?

For this question we will use the verb manger (to eat) as an example. The perfect tense is used to describe an action which took place once in the past. You can think of it as a single, completed action . EX...
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Answered by Laura G. • French tutor
4150 Views

What does a velocity-time graph represent?

The first step in answering any question is to figure out what the question really means! Velocity is a term physicists use to describe not just speed, but speed in a particular direction. When we talk about...
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Answered by Iman S. • Physics tutor
21762 Views

What does it take to make a 7 in HL Economics?

Most IB students pick HL Economics thinking it is an easy seven that can boost their total score. However, IB economics is one of the most instense courses offered by the IBO. There are five main steps to ta...
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Answered by Youssef M. • Economics tutor
28596 Views

What are accents for?

Accentuation in Spanish is used to guide the reader into how a word is pronounced. The idea is that a word can be chopped into syllables, and the syllable with the accent in it will be the strongest one, or ...
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Answered by Mathilda B. • Spanish tutor
3574 Views

What is evolution and why does it happen?

Evolution is a constant process that allows life forms to adapt to a changing environment. How does the environment change, though? Well, there are several sources of variation in every ecosystem. Variation ...
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Answered by Mathilda B. • Biology tutor
3825 Views