I would like to verify if this sentence has an example of a bare infinitive.
I can see them rallying across the street.
Thank you in advance for you replies.
The verb in the main clause is "can see". The main clause is finite, ie., it shows tense. When you see a cluster of verbs in a finite clause, it is always the first verb that carries person, number, and tense. In your sentence, "can" does that, in keeping with one of the features of central modals: they have no nonfinite forms. The bare infinitive form of "to see" is "see". But this is, say, the singular first person form of "to see" too. No problem! As I already mentioned, the first verb is finite, the rest is nonfinite. If "see" is nonfinite, it must be a bare infinitive. On the other hand, if "see" is finite, as is here:
I see them rallying across the street.,
that "see" is not a bare infitive.
I can see them rallying across the street. -- bare inf.
I see them rallying across the street. -- no bare inf.