Top answers

What is the perfect tense and how is it used?

The perfect tense makes a distinction between the perfect tense (I have gone out) and the simple past (I went out). The form constits of the verb haber: he has ha hemos habéis han The following verb will the...
NB
Answered by Natasha B. • Spanish tutor
3825 Views

What is diffusion?

Diffusion is the movement of particles from an area of high concentration to low concentration (down a concentration gradient). This occurs because the particles move randomly, and eventually end up evenly s...
NH
Answered by Natalie H. • Biology tutor
8385 Views

What is a concentration gradient?

A concentration gradient occurs when you have a solute, like salt, dissolved in a solution, like water. Most of the time there won't be the same amount of salt through out all of the water - there will be mo...
NH
Answered by Natalie H. • Biology tutor
10365 Views

How do I form the conditional tense?

The conditional tense is used to descibe a situation in the future that may or may not happen. For example: If I were rich, I would buy a big house I could go to the cinema later The conditional tense is eas...
EC
Answered by Emmanuelle C. • French tutor
4970 Views

How do I use the imperfect in French?

In French, the imperfect is used - to describe a scene eg. il PLEUVAIT dehors - to say that you did something on a regular basis in the past eg. je COURAIS chaque lundi matin - or to describe a continuous ac...
EC
Answered by Emmanuelle C. • French tutor
4080 Views