Step 1: Understanding the verb “smell”.
The verb
“smell” can function as a
verb of perception. Verbs of perception such as
see, hear, feel, taste, and smell are often used in the
simple present tense rather than the continuous form when describing senses.
Step 2: Correct tense usage.
When someone becomes aware of a smell at the present moment, the correct grammatical form is the
simple present tense. Therefore, the sentence should be written as:
“I smell something burning.”
Step 3: Checking the options.
- (A) am smelling: Continuous form is generally not used with sense verbs.
- (B) was smelling: Past continuous tense, which does not fit the present context.
- (C) smell: Correct; simple present tense is appropriate.
- (D) have been smelling: Present perfect continuous, which is unnecessary here.
Step 4: Conclusion.
Thus, the correct sentence is:
I smell something burning.
Final Answer: smell.