"Watching television can be a waste of time." If you can add a possessive pronoun or add an adverb and the result makes sense then watching is a gerund. For example, the following make sense: "Our watching television can be a waste of time."
In grammar, the present participle of a verb is the form which ends in '-ing'. Present participles are used to form continuous tenses, as in 'She was wearing a neat blue suit'. They are often nouns, as in 'I hate cooking' and 'Cooking can be fun'.
The simple past tense: I watched TV. He watched TV. Structure: [verb + d/ ed]. The past continuous tense: I was watching TV.
Watching can be an adjective or a verb.
Present participles always end in -ing. Other examples of present participles include swimming, laughing, and playing. The present participle can function as an adjective and modify nouns in sentences.
When two actions occur at the same time, and are done by the same person or thing, we can use a present participle to describe one of them. When one action follows very quickly after another done by the same person or thing, we can express the first action with a present participle.
The verb have has the forms: have, has, having, had. The base form of the verb is have. The present participle is having. The past tense and past participle form is had.
Both a gerund and a present participle come from a verb, and both end in –ing. However, each has a different function. A gerund acts like a noun while a present participle acts like a verb or adjective.
Present continuous (or progressive) is a verb tense. The present participle along with the corresponding form of to be gives the present continuous tense. The present participle of the verb 'read' is reading. The present continuous tense forms are am reading, is reading and are reading.
When a verb (base form) + ing is used as the adjectives in sentences, it is called a present participle. When it works as a noun in a sentence, it becomes a gerund, and when it comes with a 'be' verb to indicate continuous tense, it works as a finite verb and loses the feature to be a participle.
The present-participial phrase usually acts as an adjective. It can come at the beginning of a sentence, in the middle of a sentence, or at the end of a sentence. When you start a sentence with a present-participial phrase, make certain that the grammatical subject of the sentence is the agent of that verbal activity.
Participles Used as the Main Verb
Participles are used with auxiliary verbs in a variety of tenses. It is important to remember that the changes in the conjugation of the verb are made to the auxiliary verb. The participle form remains the same. Present participles are used for continuous (or progressive) tenses.
The present participle is formed by adding -ing to the base form of a verb (infinitive without to). For verbs ending with the letter –e, eliminate the –e before adding –ing. If a verb is composed of one syllable which ends with (one vowel + consonant), double the final consonant before adding -ing.
Usage Rule: "Had watched" means it happened before a certain point in time (which is either mentioned outright or is implied). "Have watched" means it happened before now.
to be alertly on the lookout, look attentively, or observe, as to see what comes, is done, or happens: to watch while an experiment is performed. ... to keep guard: She was assigned to watch at the door.
The present perfect tense refers to an action or state that either occurred at an indefinite time in the past (e.g., we have talked before) or began in the past and continued to the present time (e.g., he has grown impatient over the last hour). This tense is formed by have/has + the past participle.
watchful. observant, vigilant and aware.
watch (verb) watch (noun) watching brief (noun)