In a sentence like 'I saw she running/run towards the gate', the first verb 'saw' is the past form while the following verb can be either in the base for or continuous form.What if a sentence especially with that-clause reads like this,
"I heard (that) she passed away at her home"?
Thanks .
In "I saw her runing / run toward the gate," "running" and "run" are not verbs, but verbals. They don't have tenses. "Running toward the gate" is a participial phrase. "Run toward the gate" is an infinitive phrase. They only resemble present simple and present continuous. They do not express time, but are simply adjectival modifiers, describing the direct object, "her."

In "I heard (that) she passed away at her home," both are true verbs, and both are in the simple past.
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By the way, what is a participial phrase?
sebayanpendam By the way, what is a participial phrase?
Where shall I begin??

When you look up a verb in the dictionary ("to teach," for example) you'll find certain elements of the word listed:

teach taught teaching teaches

The first one is the bare infinitive, the second is the past participle, the third is the present participle, and the fourth is the present tense third person singular.

The participles are used variously in forming the complex tenses, and as adjectives and nouns. "She had been teaching for sixty years," "I love teaching," "Arithmetic is taught in the second grade," "Is being a good artist an inherited trait or is it a taught skill?" etc. (Sorry about that last one!)

Often a group of words beginning with a participle functions as a unit (a phrase), frequently performing the job of an adjective (modifying a noun.)

The man running with the flaming torch is my brother. The underlined is such a participial phrase, using the "present participle." Note that included in this participial phrase is a prepositional phrase, "with the flaming torch." As you might suspect, it starts with the preposition "with."