Dear Mike ,
I have little confusion with your explanation ...
EXISTED - is acting as verb or ed modifier...
If we can break this sentence into different clauses ---
1) The recent discovery of fossils of giant plankton feeders let scientists to believe that an era --- S/v aggrement perfect
2) that had been dominated by Leedsichthys (Subject - era , Verb - Dominated) - S/V issue ---> era dominated by leedsi..
3) that have now evolved currently into basking sharks existed (Sub - Era , verb -- ??)
Please clarify doubt ..I have issues with SC ...
I'm happy to help.
First of all, an important grammar distinction. Some verbs are transitive
--- they naturally take a direct object: e.g. write, buy, sell, own, create, destroy
, etc. If I say, "I buy
..." , then the reader is expecting: he buys what
? Transitive verbs demand a direct object.
By contrast, intransitive verbs are verbs that do not take a direct object: eg. exist, walk, breath, elapse, sleep
, etc. I can say, "I exist
", but it doesn't make any sense for me to say "I exist something
This distinction is made more complicated by the fact that many English verbs can be either transitive or intransitive: sing, eat, drink, etc. I can say simply, "She likes to sing
" or "She likes to sing songs by Schubert
." The verb is natural in either case.
Now, participles. The present participle, the -ing participle, is an active participle
. If I say... the man buying eggs ...
... the man sleeping ....
... the man drinking ....
then, in each case, the "man
" is the "subject", the actor, the person performing the action of the verb in the participle. All verbs, transitive and intransitive, have active participles.
The past participle, the -ed participle for regular verbs, is a passive participle
. If I say:... the cake bought on Tuesday ...
... the cake created by the chef ...
... the cake eaten at lunch ....
then in each case, the "cake
" is the "object", the receiver of the action, the thing to which the action of the verb happens. A verb can only have a passive participle if it has passive form. A verb can only have a passive form if it can take a direct object --- that is to say, if it is transitive, at least on some occasions. Verbs that are completely intransitive have no passive form and no passive participle.
The verb "to exist
" is an intransitive verb. It never takes a direct object. We can use the present participle ("existing
") as a modifier, but this verb has no passive form at all. Just as it makes no sense to say:I existed X
it also makes no sense to sayX was existed by me.
The verb has no sensible passive form. Therefore, it has no past participle modifier. The form "existed
" is the past tense form of the verb, but this NEVER can act as a participle, as a noun modifier.
Does all this make sense?
Magoosh Test Prep