Breakdown of Spor yapmakla stresi önlemek mümkün.
ile
with / by / and (linking nouns)
stres
stress
spor yapmak
to do sport, to exercise
mümkün
possible
Questions & Answers about Spor yapmakla stresi önlemek mümkün.
How does yapmakla translate to "by doing"?
It is the infinitive yapmak (to do) combined with -la, the shortened form of ile (with / by means of). Attaching -(y)la or -(y)le to an infinitive is how you express "by doing [an action]" in Turkish.
Why does the word for stress have an -i at the end (stresi)?
It takes the accusative case suffix -i because it is the direct object of the verb önlemek (to prevent). You are preventing a specific thing (the stress), so it needs the accusative case.
Where is the main verb in this sentence?
There isn't an action verb! This is a nominal sentence (a "to be" sentence) where the adjective mümkün (possible) is the predicate. The whole phrase stresi önlemek (preventing stress) acts as the subject. Literally, it reads: "By doing sports, preventing stress [is] possible."
Could I write spor yapmak ile as two separate words?
Yes, you can use the full word ile and write spor yapmak ile. Both are grammatically correct, but the suffix form -la is much more common in everyday Turkish and flows better.