Questions & Answers about सुबह मैं हिंदी लिख रही हूँ।
सुबह is a time word meaning in the morning / morning. In Hindi, time expressions often come near the beginning of the sentence, but the word order is fairly flexible.
So these can all be natural, depending on emphasis:
- सुबह मैं हिंदी लिख रही हूँ।
- मैं सुबह हिंदी लिख रही हूँ।
Putting सुबह first gives a natural time-topic feeling: As for the morning / In the morning, I am writing Hindi.
Because this sentence is in the present progressive: am writing.
In Hindi, with present progressive forms like:
- मैं लिख रहा/रही हूँ = I am writing
the subject stays in the direct form:
- मैं
You use मैंने mainly with many perfective past transitive verbs, for example:
- मैंने पत्र लिखा। = I wrote a letter.
So here, मैं is correct because the sentence is not a perfective past sentence.