because
The French word 'parce que' is used similarly to the English 'because'. It's used to provide a reason or justification for something stated previously. Note that 'parce que' is two words in French, not one.
I'm happy because it's my birthday.
This sentence indicates someone expressing their happiness and the reason for it which is their birthday. 'Parce que' is used here to join two linked ideas - the speaker's happiness and their birthday.
It's raining because the clouds are full.
This sentence describes a cause and effect scenario. 'Parce que' allows the speaker to connect the effect (it's raining) and the cause (the clouds are full).
She cries because she's sad.
In this sentence, 'parce que' is used to provide the reason for someone's behavior. This expresses the concept of cause and effect - the cause being the sadness and the effect being the crying.
We are late because the train was late.
In this sentence, 'parce que' is used as a conjunction to provide a reason/excuse for being late. The cause being the late train and the effect being their lateness.
I go to school because I love learning.
In this example, 'parce que' connects the action, going to school, with the speaker's desire to learn. It expresses the motivation behind an action.
She reads the book because she loves the story.
This sentence expresses a motivation behind an action. 'Parce que' connects the action (reading the book) and the motivation (loving the story).
I ate the pizza because it was delicious.
In this phrase, the speaker uses 'parce que' to give a reason for their past action. The cause was the pizza being delicious and the effect being it was eaten.
He didn't sleep because he was scared.
This sentence uses 'parce que' to give the reason why someone did not carry out an action (sleep). The cause was fear and the effect was lack of sleep.
She didn't finish her work because she was tired.
In this sentence, 'parce que' is used as a conjunction to connect the action (not finishing the work) and the reason behind this action (being tired).
I am happy because I am with you.
This sentence expresses someone's happiness by being with another person. 'Parce que' is used to link the emotion (happiness) and the reason for this emotion (being with someone).