Definition from Wiktionary, the free dictionary
- To arrive
- I expect John will be along soon.
- Be is almost never inflected in this phrasal verb. The use of modal verbs is much more common, or else the to infinitive.
- The sense is for the future, or near present. There is no past form, except for subordinate clause structures, using past modal verbs. E.g. I thought the bus would be along soon.