Modal verbs may / may not |
Verbs seem(s) to |
Adjectives possible |
Adverbs possible |
Source: ERIC Identifier: ED291014 Publication Date: 1987-07-00 Author: Bolton-Brownlee, Ann ERIC Clearinghouse on Counseling and Personnel Services Ann Arbor MI. http://www.eric.ed.gov/PDFS/ED291014.pdf
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