Questions & Answers about Я устал от переписки и собираюсь просто позвонить ей.
In Russian, you normally do not use the verb быть in the present tense in statements like this.
- Я устал literally is “I became tired / I am (in a state of) tiredness now.”
- The verb устал is the past tense form of устать (“to get tired”) and in modern Russian it also serves to express the current resultant state: I am tired (now because I got tired earlier).
- Adding есть (“am/is/are”) would sound archaic or literary here: я есть устал is incorrect in modern spoken Russian.
Also, устал is masculine.
- A woman would say: Я устала.
- In plural: Мы устали (“We are tired / we got tired”).