How is the infinitive phrase used in the sentence?

Morning is the best time to study difficult equations.

A.
adverb

B.
noun as predicate nominative

C.
adjective

D.
noun as subject

Question

How is the infinitive phrase used in the sentence? 

Morning is the best time to study difficult equations.
 
 A.
adverb
 
 B.
noun as predicate nominative
 
 C.
adjective
 
 D.
noun as subject

solomonzelman · Answer

firstly, can you tell me what is the infinitive phrase here?

anonymous · Answer

to study difficult equations?

solomonzelman · Answer

not exactly.

solomonzelman · Answer

Infinitive phrases examples:   LABELED IN $\normalsize\color{blue}{     \rm BLUE    }$. 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
I wanted $\normalsize\color{blue}{     \rm to~tell            }$ him how I felt about the flowers.
We never used $\normalsize\color{blue}{     \rm to~study           }$ so much.
Did you want $\normalsize\color{blue}{     \rm to~ask         }$ something?

anonymous · Answer

yes but you asked for the infinitive phrase not the infinitve

solomonzelman · Answer

oh, sure

solomonzelman · Answer

you are right:)
I think it is like this:   $\normalsize\color{blue}{     \rm Morning~~is~~the~~best  ~~\color{red}{blank}.      }$

solomonzelman · Answer

looks like the infinitive phrase is a part of a compound noun

anonymous · Answer

I just don't understand how to find how the infinitive phrase is used in the sentence.

solomonzelman · Answer

I asked myself a question, the infinitive phrase is part of what?

solomonzelman · Answer

it is part of the word "time", as "time to study difficult equations".

solomonzelman · Answer

and not "best to study difficult equations"

anonymous · Answer

its part of a noun and an adjective. Difficult and Equations

solomonzelman · Answer

$\normalsize\color{blue}{     \rm  to~~study~~difficult~~equations    }$ is modifying the word $\normalsize\color{brown}{     \rm  time    }$.

solomonzelman · Answer

$\normalsize\color{blue}{     \rm  to~~study~~difficult~~equations    }$ it is not modifying the word $\normalsize\color{red}{     \rm  best   }$

anonymous · Answer

Ok I understand now thank you so much.

solomonzelman · Answer

time is not the subject, so there is then only one answer.
(I am actually a little bit confused as far as the subject here goes)

anonymous · Answer

i doubt i could help...sorry

solomonzelman · Answer

it is clearly a noun.

solomonzelman · Answer

http://grammarist.com/grammar/predicate-nominatives/ it is predicate nominate

solomonzelman · Answer

$\normalsize\color{blue}{     \rm Morning   }$ is the best $\normalsize\color{green}{     \rm time   }$ to study difficult equations.
$\normalsize\color{blue}{     \rm They   }$ are the $\normalsize\color{green}{     \rm ones  }$ who play sparingly in the preseason.

see the similarity?

anonymous · Answer

yeah

anonymous · Answer

thanks again

solomonzelman · Answer

yw