Questions & Answers about वह मेहनत करती है।
A word-by-word breakdown is:
- वह = she / he / that
- मेहनत = hard work, effort
- करती = does (feminine singular form of करना, to do)
- है = is
So the sentence is literally something like:
- She does hard work
- more naturally in English: She works hard
Because the subject is feminine singular.
In Hindi, verbs often agree with the subject in sentences like this. Since the sentence refers to she, you use:
- करती for feminine singular
- करता for masculine singular
Compare:
- वह मेहनत करती है। = She works hard.
- वह मेहनत करता है। = He works hard.
So -ती is a very common sign of feminine singular in this kind of present habitual sentence.