Student or Learner
I decided to study.
I decided to work.
I have to study.
I have to work.
I want to connect these sentences with both ... and. Thanks
Is this one wrong?
I decided both to study and to work.
No - it emphasises your intentions.
Thank you very much Angelika. What about my other sentences.
I have to work. I have to study. One of the members reply was "I have to both work and study. Is this one wrong? I have both to study and to work. Or I have both to study and work. Or we should keep have to as a modal like should and must together?
All three are perfectly acceptable. Which to use is a stylistic decision - whether you need to emphasise the two actions or not.
I think the answer to your question about modals is no, you do not have to keep them together in this context.