Where do you find a subordinate clause?

Conditional Subordinate Clause

Relative Subordinate Clause

Non-finite Subordinate Clause

Adverbial Subordinate Clause

Infinitive
(eat)

Simple Present
(eat)

Simple Past
(eat)

Present Progressive
(eat)

Past Progressive
(eat)

Present Perfective
(eat)

Past Perfective
(eat)

How to tell if something is in the Passive Voice?