Questions & Answers about Şu yığın yığın nanelere bakayım.
How does the reduplication yığın yığın change the meaning of the sentence?
If yığın yığın already implies plurality, why does nane (mint) get the plural suffix in nanelere? Doesn't Turkish usually keep nouns singular after quantities?
That is a great rule to remember for numbers (like iki kedi) and basic quantifiers (like çok çay). However, when using a noun-based ikileme to describe abundance or separate physical groups (like yığın yığın), the following noun often takes the plural suffix to emphasize the physical reality of those multiple distinct bunches.
Why is the dative case -e added to the end of nanelere?
The verb bakmak (to look) always requires the dative case for the target of your attention. You are looking at the mint, so naneler (mints) becomes nanelere.
What verb form is bakayım?
It is the root bak with the first-person singular optative suffix -ayım. This form is extremely common in daily Turkish for stating an intention or suggesting an action for yourself, translating nicely to let me look or I will just take a look.