The infinitive phrase "to find the perfect birthday gift" is serving as the subject of the sentence. It tells what the speaker finds difficult.
subject
The verb phrase is "may find".
Brazilians find it offensive when guests, tourists, and visitors want to do everything in a hurry, speak impatiently and rudely, show a complete lack of manners, find fault with everything, and don't want to try Brazilian food.
subject
Subject, verb, and direct object are three things you will not find in a prepositional phrase.
In the sense that a phrase is a set of words that conveys a meaning, yes. "The frost was sharp." is a complete sentence. If you are using the term "phrase" to mean "an incomplete sentence" then, of course, it is not incomplete so, you should find a different word to describe it.
Look for the word that describes the action. Sometimes it may be difficult, but it is there.
find part of the sentence that normally starts at the beginning. examples are :atoffromtoupdownbyafteraboveoutonunderinnearuntilhopefully you get the point.i dont please improve!
I find the word "enjambment" a very difficult word to remember how to spell.
Chris did not find it difficult to open the files but analyzing them proved more difficult than expected
It's "on the envelope" because it is showing place or time. Some key words are: -in -on -under -by -to