Identify the verbal phrases . Then, tell whether each verbal phrase is a participial phrase, a gerund phrase, or an infinitive phrase.

1. Fortunately, in the flight deck sit people trained in the uses of these controls and instruments.

2. The captain, who uses the left-hand panel, operates a lever that controls the wing flaps and helps steer the plane.

3. To the captain’s right is the first officer, whose job is to help the captain.

4. Some of the other instruments shown here are parts of the
plane’s navigation, autopilot, and communication systems.

5. At another station in the flight deck, the flight engineer monitors gauges and operates switches to control the plane’s generators and the pressure and temperature in the cabin.

1. trained in the uses of the controls-participial phrase
2. operates a lever- participial phrase
3. to help the captain-infinitive phrase
4. shown here-participial phrase
5. to control the plane’s generators-infinitive phrase

1. See #3 in your previous post. The participial phrase you listed is INCOMPLETE.

2. See #5 in your previous post. NONE OF THE THREE ELEMENTS are in this sentence.

3. Now it's correct.

4. Now it's correct.

5. See your previous post. The infinitive phrase is incomplete.

3. trained in the uses of these controls and instruments-participial phrase

5. to control the plane’s generators and the pressure and temperature in the cabin-infinitive phrase

Yes, now these two are correct.

AHA!!

2. The captain, who uses the left-hand panel, operates a lever that controls the wing flaps and helps [to] steer the plane.

I see it now -- the infinitive phrase is one in which the word "to" is assumed (omitted, but understood).

1. "trained in the uses of the controls" - participial phrase

2. "operates a lever" - participial phrase
3. "to help the captain" - infinitive phrase
4. "shown here" - participial phrase
5. "to control the plane’s generators" - infinitive phrase