when referencing an event following another event should I use followed with or followed by
Please give us a sample sentence.
The past participle followed can be used in various ways:

(1) Passively: I am being followed by ..., the stopover in Oxford will be followed by ... (by should always be used in this sense)

(2) Actively: He followed ... (any adverbial clause can be added here: he followed her with baited breath, he followed her by the river, he followed her into the night, he followed with the picnic basket, etc.)

The only time one would use with rather than by in the passive voice would be as an adverbial clause: he was being followed with care (How was he being followed? With care).
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I believe that the question was about a sequence of events, Jason. Could you address that problem more directly?
You are quite correct. Thank you for pointing that out to me.

Usage would suggest that, when describing a sequence of events, it is correct to use by. E.g., My visit to the shop was followed by a rather ugly encounter with the police. There are some data to support using with, but it is non-standard.

An example using with from the British National Corpus: ' "Push", "discipline" or "dig in" came hissing forth, and were once followed with a hilarious bellow when Parke made an injudicious shot selection: "brain".' While it may not be obvious, I believe that most would agree the sentence sounds better when followed by is substituted for followed with.

Followed with a discussion

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anonymousFollowed with a discussion

'By' is a better, more usual choice.

Prayers is followed by/with lunch