Page 111 - Practical English Usage 3ed - Michael Swan, Oxford

5 ring/call back
Note that ring back (BrE only) and call back can be used to mean both 'return a phone call' and 'repeat a phone call'.
She's not here just now. -Ask her to ring me back. (= return my call) I haven't got time to talk now. - OK, I'll ring back later. (= ring again)
6 word order
Back is an adverb particle (see 20), and can usually go between a verb and its object, unless this is a pronoun (see 599.4). Again cannot.
Take back your money - I don't want it. (OR Take your money back ...) Count the money again. please. (NOT Count again the ffl6n£y .•.)
For other uses of back and again, see a good dictionary.
88 bath and bathe
1 bath
Pronunciation: bath /ba:.8/ bathing j'ba:811J/ bathed /ba:.8t/
This verb is not used in American English. It can have an object.
It's your tum to bath the baby.
And it can be used to mean 'bath oneself.
I don't think he baths very often.
This use is rather formal; people more often say have/take a bath.
I'm feeling hot and sticky; I think I'll have a bath. 2 bathe
Pronunciation: bathe IbelO/ bathing j'beIOlf]/ bathed IbelOd/
Bathe is the American equivalent of bath. (Take a bath is also common.) It's your tum to bathe the baby. (ArnE)
I always bathe before I go to bed. (ArnE) (OR ••• take a bath)
Bathe can also be used (in both British and American English) to talk about putting water on a part of the body that hurts (for instance sore eyes).
Your eyes are very red - you ought to bathe them.
And bathe can be used (in British English only) to mean 'swim for pleasure'.
NO BA THING FROM THIS BEACH
This use is rather formal; people more often say have a swim, go for a swim, go swimming or just swim.
Let's go for a swim in the river. 89 be: progressive forms
I am being I you are being etc + adjective/noun
We can use this structure to talk about actions and behaviour, but not usually to talk about feelings. Compare:
- You're being stupid. (= You're doing stupid things.)
I was being very careful. (= I was doing something carefully.) • page 79
be: progressive forms 89