Top answers

Which auxiliary verb do I use in the passé composé?

In order to decide which verb (avoir or être) when conjugation the passé composé, you must first choose the verb that you wish to conjugate. The majority of verbs are regular, and simply use the present tens...
JB
Answered by Joseph B. • French tutor
5084 Views

What is the difference between 'le' and 'un' in french?

'Le', 'la', 'les' is used when you are asking or describing something in particular. "Can I have the blue pen?" - "Est-ce que je peux avoir LE stylo bleu?" - You only want the blue pen. &...
EK
Answered by Emma K. • French tutor
13398 Views

When do I use "tu" and when do I use "vous"?

Explanation: Both "tu" and "vous" mean "you" but "tu" is used for the singular of "you" and "vous" is used in two cases: the plural of "you&qu...
MM
Answered by Mathilde M. • French tutor
3914 Views

What is ecological validity?

Ecological validity is the extent to which research, or findings from an experiment, can be applied to real-life settings - i.e. the "real world". Lab studies often lack ecological validity as they...
BS
Answered by Beth S. • Psychology tutor
4917 Views

What is optical isomerism and how can you distinguish between optical isomers?

A molecule will exhibit optical isomerism if it contains a chiral centre / an asymmetric carbon atom - in other words, if it contains a carbon atom with 4 different groups attached. Due to this property, the...
BS
Answered by Beth S. • Chemistry tutor
47501 Views