how can I write a sentences with

prepersitional phrases?

In what world do you live?

First of all, watch your spelling:

grammar
a sentence
prepositional phrases

Try this:
http://www.uottawa.ca/academic/arts/writcent/hypergrammar/preposit.html
There is a list of prepositions, with which you can make prepositional phrases and then build sentences around them.

To write a sentence with prepositional phrases, you will need to follow a few steps:

1. Select a subject: Choose a subject for your sentence, which is typically a noun or pronoun representing the main element you want to talk about. For example, you could use "John," "dogs," or "she" as your subject.

2. Choose a verb: Select a verb that will express an action or a state of being related to your subject. For instance, you could use verbs like "run," "eat," or "is."

3. Identify a preposition: Prepositions are words like "in," "on," "at," "under," and "beside." They indicate relationships between the subject and other elements in the sentence. Choose a preposition that adds information about where, when, or how the action or state occurs.

4. Determine an object: The preposition will be followed by an object, typically a noun or pronoun, that completes the meaning of the prepositional phrase. The object clarifies the location, direction, time, or other elements related to the preposition.

5. Combine all parts: Now, combine the subject, verb, preposition, and object together to form a sentence. Make sure the prepositional phrase provides additional details about the subject or verb.

Here's an example sentence using a prepositional phrase:
"John walked to the park."

- Subject: John
- Verb: walked
- Preposition: to
- Object: the park

The prepositional phrase "to the park" describes where John walked.