Understand or Understood?

[raimesina]

When do you use:

1. I understand.

and

2. I understood.

[ronzam2002]

1. you use "I understand" when you understand somthing that is present.

and

2. I understood. - means the past tense of understand..


I hope I help a little.

[adsonbake]

"I understand' is used when you understand some action, word or thing at present. and
'I understood' is the past tense of I understand.

[FFXI]

I seldom use "I understood".

[zinmodee]

I understand refers to the things or some activity done at present while I understood is the past form of the understand.

[shah.baz]

When you are talking with a Live person then you will use I understand
and
When you are talking with a Dead body then you will have to use I understood.
simply understand is for Present and understood is for Past.