Link verbs - are verbs which to a smaller or greater extent have lost their meaning and are used in the compound nominal predicate.
The link verbs fall into two main groups:
1) those that express perceptions.
2) those that express nonperceptional,or "factual"link-verb connection.
The main perceptional link-verbs are: seem,appear,look,feel,taste;
The main factual link-verbs are: become,get,grow,remain,keep
