The perfect tense is made of the verb haber and a past participle. Some verbs have irregular past participles. Irregular past participles include: dicho (said), hecho (done) and visto (seen).

Present tense irregular verbs in French Irregular verbs do not ... is used to say ‘since’ and ‘for’ in present tense sentences. 'Depuis' is usually accompanied by a reference to time.

In particular, this can manifest as incorrect use of verb tenses, making it difficult for patients to talk about past or future events ... the researchers designed two sentence-completion tasks.

The organization points out that in contemporary Spanish, certain verbs have two participle forms: regular and irregular. Examples of these ... in forming compound tenses and the periphrastic ...

Our physical selves seem forever chained to each moment as it occurs, but our mind revisits past experiences and imagines future experiences at will. In recent research, one of my graduate ...