Collocations for observe - verb

carefully, closely | precisely | directly
It is not possible to observe this phenomenon directly, but its effects can be seen in the rise in global temperatures.

actually
It is the parents who actually observe these behavioural problems in their children.

just, simply
You can learn a lot by simply observing.

generally, normally | quietly
She stood there, quietly observing the domestic scene.

secretly | experimentally
This phenomenon has been observed experimentally.

be able to | be possible | be difficult to | be interesting to
It is interesting to observe the reaction of the children to these changes.

from
unaware that she was being observed from the window

be commonly/frequently/widely observed
This behaviour is commonly observed among several species of finch.

be easily/readily observed, an opportunity to observe sb/sth

correctly, justly, rightly, shrewdly
She correctly observed that there was very little difference between the two parties on domestic policies.

drily, sardonically, wryly | tartly | coldly, coolly
‘You took your time, ’ he observed coolly.

conversationally | mildly, quietly | sadly

to
‘It''s easy for him to say that, ’ she observed tartly to Michael, ‘but can he prove it?’

correctly, faithfully, scrupulously, strictly
This procedure must be correctly observed.

fail to

failure to observe sth
Failure to observe club rules may result in expulsion.