-vot

1. Swapping -yap for -vot
Take a verb in the -yap present continuous and replace -yap with -vot. The person endings stay the same:

• kelyapman → kelvotman (I'm coming)
• qilyapsan → qilvotsan (you're doing)
• kelyapti → kelvotti (he or she is coming)
• ketyapmiz → ketvotmiz (we're leaving)
• ishlayapsiz → ishlavotsiz (you're working)

In the third person, -yapti becomes -votti, with a double t.

2. Faster still
In quick speech the sounds blend even more. The l of kel- often drops (kevotti), and qilvotsan can sound like qilvossan. Chat messages spell these in many ways. Learn to recognize them; you do not need to copy them.

3. Where it comes from
-yap grew from an old form of the verb yotmoq (to lie down), a little like saying someone is lying there reading. -vot probably comes from another form of the same verb. Grammars describe -vot as a feature of the Tashkent dialect.

4. When to use which
Use -yap in writing, in class and whenever you want to sound careful. -vot is fine in relaxed talk with friends. News and formal writing prefer -moqda, and older literature has -(a)yotir.

5. Still the present
The -ti in kelvotti looks like the past ending -di, but it is not. Kelvotti means he is coming now. For he came, say keldi.