1
vote
1answer
88 views

“Sent” vs “sent off” vs “sent out”

When do we use one over another? I sent a letter. I sent off a letter. I sent out a letter. Here I found a similar topic but I am still confused. sent = sent to one or more people ...
1
vote
2answers
106 views

Is there any difference between “stoop down” and “stoop”?

According to Longman, they are the same, but I wonder if this is correct or if so, which one is more common. For example: Dave stooped down to tie his shoes. Dave stooped to tie his shoes. ...
25
votes
2answers
4k views

What is the difference between “maybe” and “may be”?

What is the difference in meaning and usage between maybe and may be? Are they synonymous?
6
votes
3answers
2k views

Why do we use 'up' as adverbs for verbs?

Why do we use up as adverbs for verbs? For example, 'wake up', 'throw up', etc.
7
votes
4answers
501 views

How can I learn to get collocations right?

I read an article about collocation which includes an example: We can say highly sophisticated, and we can say extremely happy. highly happy and extremely sophisticated would be wrong. How can I ...