«وكذا يجوز الواو وتركه إن كان الفعل ماضيًا لفظًا أو معنى»
Likewise, wāw may be used or omitted when the verb is past in form or in meaning.
An affirmative past has a different temporal orientation from the ordinary affirmative imperfect. Accordingly, explicit circumstantial linkage by wāw may be appropriate. But when a preceding event and an adequate contextual cue establish the same relation, a past-form circumstantial clause can also appear without wāw. Form and meaning must be examined together.