过 alone means 'to cross' or 'past' example: 过一个路口-pass an intersection. or 已经八点过了-its already passed 8:00! But when placed after a verb in Mandarin, it inidicates positive or negative experience 我听过这首歌 - I've listened to this song before. 我没去过中国-I haven't been to China. 看过 is more flexible than 看到. 看 alone means 'to think' 'see' or 'read' but 看到 means 'to catch sight of something' or to have a glimpse of something. 看过 means "has seen" or "has read" and can be used to emphasize other activities done in experience. using 看到: 我今天看到你的弟弟- I saw your little brother today. 当我走路的时候，我看到一只狗- I saw a dog while I walking. using看过 我看过这本杂志-I've read this magazine. 她很早起床了，所以 她上午看过两份报纸-She woke up early, so she read two newspapers in the morning. 他喜欢看书。他看过那本小说三次了。-He likes to read, he has read that novel three times. 他昨天看过这部电视节目-he saw this television show yesterday. Its not a coincidence that 看 means 'to read' in a sentence like 看书. Yes, the literal meaning of 看 is 'to see' but its not the ONLY meaning, which is why 看书 means 'read a book'(not 'look at a book') It can also be used to ask an opinion, which is equivalent to 'think' i.e.你看怎么样？- What do you think?

1.The answer should be "今天早上，我看过它"。But I think "今天早上，我见过它" is more idiomatic. 2.In terms of meaning, first try to distinguish 看(look)and 看到(see), 听(listen) and 听到(hear)，找(look for) and 找到(find) e.g.我想看你的照片(I want to look at your photo.) 我在墙上看到你的照片(I see/saw your photo on the wall.) 我看过你的照片(I have ever seen your photo) 3.In terms of Grammar,."到" and "过" used as different element in Chinese sentence have different function . 1)."到"in 看到 is the complement of resul.It preceded by a verb indicates the result of an action. e.g.我在街上看到一个朋友。(I saw one of my friends in the street.) e.g.他找到我的手机。(He found my cell phone) e.g.我听到有人说话.(I heard someone was speaking.) 2)."过" in 看过 is only the aspectual particle.It preceded by a verb indicates that an action took place in the past.Just like 看过.Some verb phrases with 过 can express experience as well. e.g.我今天早上看过报纸。(I read the newspaper this morning.) e.g.昨天，他买过牛奶。(Yesterday he bought some milk.) e.g.他去过中国。(He has been to China.)

The basic meaning of the character "看" is "to look at / to watch". Of course there are extensions. For example "看书" means to look at a book (in other words, to read a book), "照看" means to look after. But you can't say "看" is to read. It's just coincidence that they are the same thing when the object is a book. What does "过" and "到" mean? The character "过" itself means "go across" or "pass through". For example, "过河" means to go across a river. The basic meaning of "到" is "arrive". "我到北京了" means "I've arrived in Beijing." When you use "过" after do, it means you did something in the past, and it becomes a part of your experience. When you use "到" after do, it means you succeed at doing something. It tells you the result. So, "看" is merely the action of looking. ●"看到" means you see/find something. (emphasizing the result of looking) -他 看到 一列火车。 -He see/find a train. ●"看过" means in the past, you've seen/looked at something. (emphasizing the time) -他以前 看过 这列火车。 -He have seen this train before. -他看过了，什么都没看到。 -He have looked, but didn't see anything. Actually you can also say "看到过", which means you found/saw something before. (both what and when) -他在这里 看到过 一列火车。 -He saw/found a train here before.

看过have looked \read ;看到Come on,I'm watching a UFO.//i watched a UFO,yesterday.

看过=have/has seen/watched 看到=can/could see;want;wish