I just saw a complex machine over there!
The docter equipped his arm to the machine.
"Do you have an ice-cream machine" asked Susan
The coffee was percolating in the coffee machine.
yes, but only in the past
Jenny saw a lithograph machine at the museum.
Jenny saw a lithograph machine at the museum.
my contributions affect everyone in my organization.
you're birth day today
An example of a complex is the design of a spider web.
Use a comma when you hear a pause in the sentence for a natural break, though short, between word groups within the sentence.
you use ATM in a sentence like,the ATM machine was broken so i went to the bank stuff like that to.
The sentence, When we do the research we find either too much material to use or not enough is not a complex sentence because the word either is used.