Subject – person or thing which carries out the verb
Modifier describes and provides a more accurate definitional meaning to another element in a sentence.
It is not too difficult to spot (or at least most of the times)
There (pronoun that refers to courses) are (verb), according to my doctor (modifier), many courses (subject) of treatment available to me
many courses of treatment (modifier that refers to courses - of treatment) (there) ARE
avaiable to me, according to the doctor.
After all the gardening we did, the sun shining on the flowerbeds make a beatiful sight.
the sun (subject) make (verb) a beautiful sight (object complement ) shining on the flower (adverb), after all the gardening we did
here the verb should be makes because is 3 singular person and "after all the gardening we did" is so to make sense but is correct at the beginning of the phrase because it goes to modify the sun.
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