what is the difference ... can someone explain to me in details ? 1 ) - There is .... (There is one time when I feel/felt like running away.) - There was ... (There was one time when I feel/felt like running away.) 2) - Is there ... ? (Is there any interviews where they talked about gifts before?) - Was there ... ? (Was there any interviews where they talked about gifts before?) 3) - She is screaming at the kids. - She was screaming at the kids. - She screamed at the kids. Can someone explain to the difference between these sentences ? & when to use it ?

I have some questions. Could anyone answer me ? 1) I missed eating ramen while watching korean variety show. Does 'missed' in the sentence means I used to miss but I don't miss it anymore (now) ? 2) Actually, I read it last night but I didn't know it was yours. Should I use 'was' or 'is' in this sentence ? 3) 'I wonder' & 'I wondered' What is the difference between these two ? Thanks :3

'what are you ...' & 'what do you...' could anyone explain what is the difference between those two ?

'didn't pick' or 'didn't picked' ? Which one is correct ? 1 ) I'm glad they didn't pick that names. 2 ) i'm glad they didn't picked that names. Woah, I still have so many to learn. Please help me :) Anyone who have any grammar notes that is easy for me to learn, would you mind sharing it with me? I'm really looking forward to have one. Thanks in advance.

I need some help from you guys ! Can someone take a look at my notebook entry & correct it ? Thanks in advance ! Here is the link : http://www.italki.com/notebook/entry/229144.htm :)

"...have....." "...had...." Would it make any difference if I add 'have' to my sentence ? For example ; 1) I have finished my studies. I finished my studies. 2) I had known about that. I knew about that. 3) I have eaten just now. I ate just now. 4) I have developed .... I developed ..... 5) I have sent it to you. I sent it to you.