Merriam-Webster's Dictionary and Thesaurus - Merriam-Webster [14]
brag; brags; bragged; bragging
grip; grips; gripped; gripping
When a multi-syllable verb ends in the same way, and the last syllable is stressed, the final consonant is also doubled:
commit; commits; committed; committing
occur; occurs; occurred; occurring
It frequently happens that a verb ending in -y preceded by a consonant changes -y to -i, except when the suffix is -ing:
carry; carries; carried; carrying
study; studies; studied; studying
When a verb ends in -c, a -k is added to inflections if the suffix begins with -e or -i:
mimic; mimics; mimicked; mimicking
traffic; traffics; trafficked; trafficking
Tense and Aspect
The present and past tenses are generally formed as a single word:
I do, I did
we write, we wrote
The future tense is conjugated with the auxiliary verbs shall or will and the present or progressive forms:
I shall do it.
We will come tomorrow.
I shall be leaving tomorrow.
Aspect concerns the tense of the verb other than the present, the past, or the future. Aspect has four forms: the progressive, the present perfect, the past perfect, and the future perfect.
The progressive is used to express an ongoing action that takes place in the present, past, or future:
He is reading the paper at the moment.
I was studying for the test when you called.
I will be going to India next year.
The present perfect tense is used to express an action done in the past but which may be continuing in the present, or to express an action that occurred at an indefinite moment in the past. It is conjugated with the auxiliary verbs has or have and the past participle:
She has written many books.
They have regretted their mistake.
The past perfect expresses a completed action that occurred before another action in the past. It is conjugated with the auxiliary verb had and the past participle:
She had written several books previously.
We had left the house before they arrived.
The future perfect tense indicates that a future action will take place before another action or occurrence still to come. It is conjugated with the auxiliary verbs will or shall and have and the past participle:
We will have finished the project by then.
They will have gone before we will arrive.
Voice
The active voice indicates that the subject of the sentence is the doer of the action of the verb; the passive voice, consisting of a form of the verb be and a past participle, indicates that the subject of the sentence is the object of the action:
Active voice: His colleagues respect him.
Passive voice: He was respected by his colleagues.
Mood
There are three moods: the indicative, the subjunctive, and the imperative. The indicative is used to indicate a fact or to ask a question:
He is here.
Is he here?
The subjunctive is used to express a condition contrary to fact, especially in clauses introduced by if, and after the verb wish:
If she were there, she could answer that.
I wish he were here.
The subjunctive is also used in clauses beginning with the word that following verbs that request, demand, or recommend:
They asked that the books be returned.
She insisted that the door remain open.
The law required that he report his earnings.
The imperative is used to express a command or a demand:
Come here!
Pay attention!
Transitive and Intransitive Verbs
A transitive verb takes a direct object:
She sold her car.
An intransitive verb has no direct object:
He talked all day.
Copyright
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Merriam-Webster's Dictionary and Thesaurus, Kindle Edition.
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A
1a noun, plural a's or as often cap 1 : the 1st