And
- To join words, phrases, clauses, or sentences.
For example:
a. Arun and Amir are my friends.
b. I am hungry and thirsty.
c. He ran and fell on the ground.
Or
- To show a choice between two things.
a. You can walk or take the bus.
b. Do you want a biscuit or a sweet.
But
- To join opposite ideas.
a. Aida wants to play outside but it is raining.
b. He called me but I wasn't home.
Because
- To show reason.
a. Emma got all As because she studied very hard.
b. My mother cannot send me to school because she is sick.
Although
- To show contrast.
a. Elena will be coming tonight, although I do not know exactly when.
Since
- To show cause and effect.
a. Since we have got a few hours to wait for the bus, let's have a cup of tea.
A phrase is a group of words which does not make sense on its own. It does not contain a verb.
Up the stairs, in a minute, with my mother.
A clause is a group of words that contains a verb. It is part of a sentence.
I went to the playground (1 clause)
because I wanted to play football. (1 clause)
(went and wanted are verbs)
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