Breakdown of Ben tostu peynirle yaparım.
ben
I
peynir
cheese
yapmak
to do / to make
ile
with / by / and (linking nouns)
Questions & Answers about Ben tostu peynirle yaparım.
Why does this sentence use yaparım instead of yapıyorum?
Yapıyorum is the present continuous tense ("I am making"), which you use for an action happening right now. Yaparım uses the simple present tense (also called the aorist tense), which Turkish uses for general habits, routines, or facts. It means "I usually make it this way."
Why is there a -u at the end of tostu?
The -u is the specific direct object ending (the accusative case). It shows you are talking about a specific toasted sandwich ("the toasted sandwich"). If you wanted to talk about making toasted sandwiches in general, you would leave off the ending and keep the object next to the verb: Ben peynirle tost yaparım.
How does peynirle mean "with cheese"?
The word for "with" is ile, but it is almost always attached to the end of a noun as a suffix. Because peynir (cheese) ends in a consonant and its last vowel is an "i" (a front vowel), the suffix becomes -le following e-type vowel harmony rules.
Is the word Ben necessary here?
No, the -ım ending on yaparım already tells us that "I" am doing the action. Adding Ben at the start of the sentence just adds a little extra emphasis, like saying "I make the toasted sandwich with cheese (even if someone else makes it differently)."