我认为的英文：
I guess
If you ask me
to my way of thinking

参考例句：

It’s spoiling for a hurricane, if you ask me.
要是你问我的意见，我认为飓风马上就来。

I think she is a hottie.
我认为她是一个辣妹。

"I regard that man as lost, who has lost his sense of shame"
我认为,人丧失了廉耻就完了

I think Otto is a turkey.
我认为奥托是个无能的之辈。

I account myself well paid.
我认为自己得到优厚报酬。

I think we see eye to eye on that subject.
我认为我们在那个问题上看法一致。

Let me lay it on the line I think you' re cheating
坦率地说,我认为你在搞鬼

My bet is that she won't refuse his invitation.
我认为她不会拒绝他的邀请。

This evidence reinforces my view that he is a spy.
这个证据证实了我认为他是间谍的这一看法。

I think he 's a pig . Pardon my French.
我认为他是一头猪，饶恕我的骂人脏话。

guess是什么意思：
v. 猜测，推测；猜出，猜着；想，认为
n. 猜测，推测

I guessed his thoughts.
我猜着了他的想法。

That is merely a lucky guess.
那只是侥幸猜中。

Can you guess the answer to this riddle?
你能猜出这个谜吗?

you是什么意思：
pron. 你，您；你们，您们；各位，大家
ask是什么意思：
v.[T]
1. 问；询问[+wh-]
2. 请求；要求[+to-v][+that]
3. 索（价）；要求得到(+for/of)
4. 邀请
v. [I]
1. 问；询问；问候(+about)
2. 要求；请求(+for)

Love asks faith, and faith asks firmness.
爱情要求忠诚，忠诚要求坚定。

Never ask questions which are not supposed to be asked.
永远不要去问不该问的问题。

Ask that lady to help you.
请那位小姐帮你忙吧。