This is the 3499th most frequent Turkish word.
olmalı
"Olmalı" means "should be" or "must be" in English.
In this sentence, 'olmalı' is used as part of the verb 'okumalıyım,' indicating necessity or obligation, meaning 'I must read.'
Bu kitabı hemen okumalıyım.
I must read this book immediately.
Here, 'olmalı' is used to indicate supposition or assumption, meaning 'it must be cold.'
Dışarıda çok soğuk olmalı.
It must be very cold outside.
In this example, 'olmalı' suggests expectation or high probability, implying 'should be ready.'