5 Parts of English Verbs
http://www.whitesmoke.com/english-verbs-basic-terms.html
English verbs have 5 principal parts with which other forms are derived using verb auxiliaries: base/stem, simple past/present, past participle, present participle and the infinitive (the “name” of the verb). Some also include the third person singular in the present tense as a principle part, as it is the only verb form that kept its inflectional ending in Modern English.
| Grammatical term | Symbol | Regular Verb | Irregular Verb |
|---|---|---|---|
| Infinitive | to + V1 | to watch | to see |
| Base Form / Stem |
V1 | watch | see |
| Present Simple third person singular | V1+s | watches | sees |
| Past Simple / Preterit |
V2 | watched | saw |
| Past Participle | V3 | watched | seen |
| Present Participle | Ving | watching | seeing |
