Evidence: The vast majority of speech errors contain mistakes at only one level of planning. The 6 stages exist as independent planning units She's already trunked two packs(packed two trunks) co The error here is thought to occur at Stage 4, where the content words she, has, already, trunk, two, and pack are fitted into the outline to Stop beating your brick against a head wall. (Stop beating your head against a brickwall) os The same is true as above Singing sewer machine(Singer sewing machine) to The error is thought to occur at Stage 5, as the suffixes are exchanged for one another◆ Evidence: The vast majority of speech errors contain mistakes at only one level of planning. The 6 stages exist as independent planning units. ⧫ She’s already trunked two packs (packed two trunks).  The error here is thought to occur at Stage 4, where the content words she, has, already, trunk, two, and pack are fitted into the outline.  Stop beating your brick against a head wall. (Stop beating your head against a brick wall)  The same is true as above. ⧫ Singing sewer machine (Singer sewing machine)  The error is thought to occur at Stage 5, as the suffixes are exchanged for one another