If he ____ early, we ____ catch the last train on time.comes / canwill come / can'tis coming / canwill come / willcomes / could be

To choose the correct phrase to fill in the blanks, we need to analyze the sentence structure and the conditionality expressed in it.

Breakdown of the Options

1. comes / can: This implies a present action leading to future capability but does not fit the conditional structure here.
2. will come / can't: "Will come" properly indicates a future event based on a condition, but "can't" does not logically follow.
3. is coming / can: "Is coming" also implies a present action; however, it doesn’t form a conditional structure needed for this sentence.
4. will come / will: This would indicate both parts are about the future, which is correct in a future conditional.
5. comes / could: This creates confusion as 'could' is conditional but requires a different structure.

Relevant Concepts

The sentence is likely indicating a condition: if he performs an action (arrives) at a certain time, then a consequence will follow (catching the train). The options must make logical sense in both parts.

Analysis

The correct choice utilizes a conditional verb form for the first blank and a modal verb regarding ability for the second. The only pair that matches the structure of a conditional sentence while signaling ability is:

Final Choice: "comes / can" fits best.

Final Answer

If he comes early, we can catch the last train on time.