I am writing a literature review. My question is which sentence is correct?
- Most of the existing work focus on...
- Most of the existing work focuses on ...
- Most of the existing studies focus on ...
Thanks
If the object after "most" is singular then the verb is singular too, else if the object after "most" is plural then the verb is plural:
Your second and third sentences are correct. The first one is incorrect.
Most of the existing work focus on...
Most of the existing work focuses on ...
Most of the existing studies focus on ...
Your ex.1 Is ungrammatical since it requires the 3rd person sing verb, “focuses”.
2 and 3. are okay – these are partitive constructions with the fused-determiner head “most”. The partitive oblique denotes a quantity and the matrix NP denotes a subquantity of that quantity.
The verb-form is determined by the matrix NP, in this case “most x”, where x may be singular or plural depending on the partitive oblique; in this singular “work” and plural “studies”.