How do you say "cortar el pasto/cesped" in English?
I searched it but I don't understand... Wordreference says that is "I have a cut", but are there any other expressions for this. Like "I cut the grass" ... " I weed ..." ?

Question

How do you say "cortar el pasto/cesped" in English?
I searched it but I don't understand... Wordreference says that is "I have a cut", but are there any other expressions for this. Like  "I cut the grass" ... " I weed ..." ?

Answer

I am mowing the lawn or the grass, if you mean using a machine [lawn mower] 
The manual instrument used a long time ago (that you can see in the hands of the grim reaper) is a scythe.

There's also something called a "weed whacker", a type of machine (google it for pictures). But you'd still say I was using my weed whacker to mow the lawn, NOT "I was whacking my weeds" :)