Present Perfect
Yet
I haven`t finishing the physics evidence yet
I haven`t finishing the week of exams yet
Never
I have never going to Cancun
I have never been on a plane
For
I have been waited my food for 40 minutes
I have was studied for 25 minutes
Already
I have already a medal for competed in swim
I have already travelled to Disney
Just
I have just finishing an exam
I have just eaten
Since
I have done homework since Saturday
I have been on the computer since 1 o`clock