to have added something on a exact moment on the past.

to be adding something on an exact moment on the present.

not to agree in something or when guilty not to admit it in the past. 

not to agree on something or when guilty not to admit it in the present.

to be choosing in between two thing in a moment in the past.

to be trying to decide in between something in a moment in the present.

to be added in something in either the past or the future.

TO BE ADDING SOMETHING ON ANOTHER SOMETHING ON THE PRESENT.

to admit something in the past 

to accept something or to allow to join in something on the present.

TO HAVE HAPPENED ON THE PAST.

to be happening right now (present.)

to had reached the ability or knowledge needed to do something in the past.

TO REACH ABILITY OR KNOWLEDGE NEEDED TO DO A SOMETHING IN THE PRESENT

to had recognize someone and had been able to say who they are in the past.

to be recognizing someone and be able to say who they are in the present.

a period when someone has to wait because they are late in the past.

A PERIOD OF TIME WHEN  SOMEONE HAS TO WAIT BECAUSE THEY ARE LATE IN THE PRESENT

to be pleased about something in the past.

to be pleased about something in the present.

TO BE BUSY IN THE PAST OR PRESENT

TO BE OCCUPYING SOMETHING FOR EXAMPLE A SLIDE.

to criticize in the past.

TO START TO COMPLAIN IN THE PRESENT.

to not include some one on purpose in the past

to not be including someone in purpose in the present.