Thinking about how prepositions work in phrasal verbs, changing the meaning of the main verb, is key to learning phrasal verbs.
Phrasal verbs become logical and predictable when you are familiar with the different meanings of prepositions.
All prepositions have a literal meaning: up and down , in and out , on and off , through , away and so on.
They also have figurative or idiomatic meanings that are not the literal meaning you would expect. For example, when we say Please put out your cigarette, the preposition out is not used with the literal meaning of outside but with the figurative or idiomatic meaning of ending.
These meanings follow a logical pattern shared by many verbs and when new combinations appear they also follow it.
Learn these figurative meanings of prepositions and phrasal verbs will gradually sound more logical and much easier to use.
To learn the phrasal verb put out...
- Understand the logic of the preposition: Out sometimes means ending.
- Learn a good example: Please put out your cigarette.
- Remember a couple of collocations: you can put out a cigarette, a fire, the flames.
- Understand the grammar: you can separate it. You can say put out your cigarette or put your cigarette out.
You should avoid lists of the same verb with all the prepositions: put away, put by, put across, put down, put in, put on, put out and so on. This creates confusion. You may find this in many books, but there's no logic, nothing to help you learn the verbs. It's just a silly list of unrelated verbs that you will soon forget.