Question

1. I try not to stress when things go wrong.

2. I try not to stress out when things go wrong.

3. I try not to stressed when things go wrong.

4. I try not to stressed out when things go wrong.
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Are they all grammatical? What is the difference among them?

Answer 1

3 and 4 are incorrect.

1 is awkward.

2 is correct.

Answer 2

Thank you for your help.

5. Driving in cities really stresses me (out).

Can we delete 'out' without changing the meaning?