is not= isn't

can not= can't

are not= aren't

do not= don't

does not= doesn't

could not= couldn't

should not= shouldn't

will not= won't

have not= haven't

had not= hadn't

has not= hasn't

was not= wasn't

were not= weren't

would not= wouldn't

I am= I'm

we are= we're

I will= I'll

I had= I'd

it has= it's had

it is= it's

you are= you're

you will= you'll

you had= you'd

he is= he's

she is= she's

it is= it's

they are= they're

they will= they'll

they had= they'd

I see= I've seen

31. I think= I think so

32. I know= I know that

33. I believe= I believe in

34. I hope= I hope so

35. I love= I love you

36. I hate= I hate you

37. I want= I want to

38. I need= I need to

39. I am= I'm

40. I was= I was there

41. I will= I'll be there

42. I have= I have been there

43. I had= I'd been there

44. I do= I do it

45. I did= I did it

46. I will= I'll do it

47. I would= I'd do it

48. I should= I should do it

49. I can= I can do it

50. I could= I could do it

这些缩写在日常英语交流中非常常见，能够使表达更加简洁明了。