What are the 30 common prepositions in English?

Hello, what are the 30 common prepositions in English?

1, the preposition indicating time is prep ... The prepositions indicating time are: at, on, in, before, after, etc. At means: (at (a certain moment, time, stage), at the age of …), on means: on (a certain day), on the weekend, on the festival of …, in means: after, during and on ….

2. Before eight o'clock, before eight o'clock, after eight o'clock, after lunch, by means of ... by means of action or production. "Take+transportation.

3. Means: with, means, followed by tools, materials or specific content. In means: use, and. In means to use in a certain way, such as color, pen and ink, language, sound, clothing, etc.

4. Prepositions indicating space include: at, in, on, over, under, under, below and other prepositions indicating static position and from, to, up, down, through, cross and other prepositions indicating dynamic direction.

5.over means: around/around. But the above about emphasizes that there is no direction. Below means: directly above, directly above. That's what it means.