Ellipsis

When one main verb serves two helping verbs, the main verb may be written only once, and only if it has the same form after both helpers.

✘ He has never and will never lie to me.
✔ He has never lied and will never lie to me.

Has needs V3 (lied) and will needs V1 (lie). The forms differ, so the verb cannot be shared.

A shared verb is fine when both helpers want the same form:

✔ He can neither read nor write. (V1 and V1)
✔ She did not and could not accept the offer. (V1 and V1)
✔ The work has been planned and discussed. (V3 and V3)

The verb be is the commonest case. Been and be are different forms, so both must be written.

✘ Sujata has not and can never in the good books of her principal.
✔ Sujata has not been and can never be in the good books of her principal.

A correct ellipsis in CGL 2025. In the crisis could have been averted far earlier than it ultimately was, the word after was is averted. It has the same form (V3) as before, so leaving it out is right.

A helping verb can be shared between two parts only if it fits both of them. When the subject changes from plural to singular, or the reverse, the same was / were or is / are no longer fits, and it must be written again.

✘ The chairs were broken and the table repaired.
✔ The chairs were broken and the table was repaired.

Were belongs to the plural chairs. If the dropped word is brought back for the singular table, we get the table were repaired, which is wrong. So was must be written.

✔ The chairs were broken and the tables repaired. (plural and plural: were fits both)
✔ The first prize was won by Radhika and the second by Meena. (singular and singular: was won fits both)
✘ I am a student and he a teacher. (am does not fit he)
✔ I am a student and he is a teacher.

The same holds for a change of person or of tense: bring the dropped word back, and if its form has to change, write it out.

✘ He is rich and his friends poor.
✔ He is rich and his friends are poor.

> A change of subject number is the signal. One subject, one helping verb is fine; a new subject of a different number needs its own verb.

To say the same is true of another person, we use so after a positive sentence and neither / nor after a negative one. The helping verb comes before the subject, because these words begin the clause (the idea of the Inversion chapter).

✔ Radhika likes tea and so do I.
✔ He did not come, and neither did his brother.
✔ Shyama does not laugh, nor does she smile.
✘ He did not come, and neither his brother did.
✘ Shyama does not laugh, nor she smiles.

[[parse: X=nor | HV=does | S=she | MV=smile]]

Which helping verb? It must match the first clause in tense and kind.

If the first clause has no helping verb, take do / does / did, and the verb that follows is dropped completely, so it never comes back as smiles or liked.

Two small points.

• After a negative sentence we use neither / nor, not so: He did not come, and so did she is wrong.
• So do I means I do too. So I do answers a remark and means yes, that is true. They are different sentences.

> Neither / nor already carry the negative idea. Do not add not with them.

After than and as a whole clause is usually hiding, with its verb dropped. To choose the right pronoun, bring the dropped part back. The part brought back shows whether the pronoun is a subject or an object.

✔ She is taller than I (am).
✔ He earns more than she (does).
✔ I like you more than he (likes you).
✔ I like you more than (I like) him.

The two sentences with like show why the meaning decides the case:

With a full clause the case is never in doubt. When the verb is written (do, does, did, am, is), the pronoun before it is a subject:

✔ Neha scored higher marks than I did.
✘ Neha scored higher marks than me did.
✔ He speaks English better than I do.

[[parse: S=He | V=speaks | O=English | A=better | CONJ=than | S=I | HV=do]]

> In relaxed speech many people say taller than me. For the exam, always rebuild the clause: if a verb can follow the pronoun, the pronoun is a subject (I, he, she, we, they); if a new subject and verb can be placed before it, the pronoun is an object.

A comparison must put like with like. If we compare the climate of Delhi, the other side must also be a climate, not a city.

✘ The climate of Delhi is hotter than Shimla.
✔ The climate of Delhi is hotter than that of Shimla.

Than Shimla compares a climate with a city. The word that stands in for the climate, and of Shimla finishes the second side.

✘ His house is smaller than you.
✔ His house is smaller than yours.

When nothing is missing. If the two things compared are already the same kind, no stand-in is needed.

✔ Delhi is hotter than Shimla. (a city with a city)
✔ Radhika's essay was better than Neha's.

> Ask, before picking the option: what is being compared with what? The second side must be the same kind of thing as the first.

Sometimes two comparisons are packed into one sentence with if not, or or a comma. The full idea is a pair:

He is as tall as his father, if not taller than his father.

To keep the sentence short, we drop the repeated his father at the first place and write it only once at the end. But we must not drop the second *as*, because as tall alone is incomplete. As tall always needs as to finish it.

✘ He is as tall if not taller than his father.
✔ He is as tall as, if not taller than, his father.

[[parse: S=He | V=is | C=as tall | CONJ=as | X=if not taller than | C=his father]]

The same pattern appears with other words:

✔ This book is as useful as, if not more useful than, that one.
✔ Radhika is as intelligent as, or more intelligent than, her cousin.
✔ There are as many girls as, if not more girls than, boys in the class.

Remember the partners. As … as goes together, and more / -er … than goes together. They cannot be mixed.

✘ He is as clever than his brother.
✘ He is more clever as his brother.
✔ No other man in the city is as rich as he is.

So … as is used only in negative sentences: He is not so tall as his father.

When the verb after to has already been mentioned, we may drop the verb, but the word to itself stays.

✔ Radhika wanted to go, but she was not allowed to.
✔ You can leave if you want to.
✔ I would like to help you, but I am not able to.

The full forms are was not allowed to go, want to leave and not able to help. The verb disappears and to remains, standing alone at the end.

Which words keep to? All the verbs and phrases that are normally followed by to + V1: *want to, wish to, hope to, ought to, have to, need to, used to, be able to, be allowed to, be going to*.

✘ I do not want to go to the meeting, but I have.
✔ I do not want to go to the meeting, but I have to.

✘ He does not smoke now, but he used.
✔ He does not smoke now, but he used to.

Modals never take to. After can, will, may, must, should, could, would the verb is simply dropped, with no to.

✔ Can you swim? Yes, I can.
✘ Yes, I can to.

> The dropped verb must be exactly the one in the earlier part. If a new verb is meant, it cannot be dropped.

After if, when, while, though, although, unless, once, until we often drop the subject and the verb *be*. Put them back and the full clause appears.

What remains is an elliptical clause, also called a reduced adverb clause. It is a clause because a subject and a verb are hidden inside it. It is not a phrase, because a phrase has no subject-verb at all.

The work of the clause depends on the joining word.

✔ Though honest, Radhika could not win the election. (elliptical adverb clause of concession)
✔ Call me when free. (elliptical adverb clause of time)
✔ Its implementation proved more complicated than expected. (comparison, than it was expected)

> If a question underlines though honest or if possible and asks what it is, the answer is elliptical (reduced) adverb clause, and its kind comes from the joining word: if = condition, when / while = time, though = concession.

A short clause has no subject written in it. The reader borrows it from the main clause. So the hidden subject of the short clause must be the subject of the main clause.

✔ Though honest, Radhika is not popular. (= though she is honest; the main subject is Radhika)
✘ Though honest, her salary is very low. (a salary cannot be honest)
✔ While in Delhi, I lost my purse. (= while I was in Delhi)
✘ While in Delhi, my purse was stolen. (a purse was not in Delhi)
✔ When ready, the cake should be served. (= when the cake is ready)

[[parse: CONJ=While | X=(I was) in Delhi | S=I | V=lost | O=my purse]]

The test is the same as in Type 1: put the dropped words back. While my purse was in Delhi makes no sense, so the sentence is wrong. Correct it by changing the main clause so that its subject fits (I lost my purse), or by writing the clause out in full (While I was in Delhi, my purse was stolen).

Fixed expressions are free. In if possible, if necessary, if so, if not, if any, if ever, the hidden subject is the general it, and they sit before any main clause.

✔ If possible, the meeting should be finished early.
✔ If possible, finish the meeting early.
✔ If necessary, the match can be moved to Sunday.

The same holds for as expected, as usual, as agreed, where the hidden subject is it or the whole idea.

> If the hidden subject is not the main subject, and the expression is not one of the fixed ones, the sentence has a dangling clause and is wrong.