A verb is in its infinitive form in English if it starts with to, for example to read and to write. In Turkish, the infinitive form of all verbs ends in mEk. The part that comes before mEk is called the stem of the verb.

Whether the verb ends in mek or mak is determined by the last vowel in the stem, in exactly the same way as the form of the plural suffix is determined by the last vowel which comes before it, according to minor vowel harmony.

Stem (front)	Infinitive		Stem	Infinitive
gel	gelmek	to come	sat	satmak	to sell
git	gitmek	to go	çalış	çalışmak	to work
gör	görmek	to see	koy	koymak	to put
yürü	yürümek	to walk	otur	oturmak	to sit

Again, the vowels at the left are called front vowels, because they are produced in the front of the mouth, and the vowels at the right are called back vowels, because they are produced in the back of the mouth.

In this lesson you will learn a collection of verbs, and in the next lessons you will learn how to make your first sentences using these verbs.

Usages of koymak