You will be responsible for learning to manage your dog's behavior, so be sure that the trainer you select teaches a training method you can understand and use comfortably.
(the trainer you select; teaches; a training method you can understand and use comfortably) (a training method; can understand; you) (a training method; use comfortably; you) (you; select; )
the trainer you select a training method a training method you
teaches can understand use comfortably select
a training method you can understand and use comfortably
you
you