posted by rfvv .
1. You can grow several centimeters in a short time.
2. You can grow by several centimeters in a short time.
(Are both OK? Is 'grow' a transitive verb or an intransitive verb? Is 'by' missing after 'grow' in #1?)
Grow is a transitive active verb.
The first sentence is the better one.
2. You've grown since the last time I saw you!
(Isn't 'grown' used as an intransitive verb here? the past participle of 'grow')
Yes... have grown is intransitive
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