C5: Use -d or -ed Endings When Appropriate
C5: Use -d or -ed Endings When Appropriate: A common error is to omit the -d or -ed ending on verbs. Recognize when they are needed.
Past Tense:
John asked if he could take vacation time next week.
The Beatles had played in that arena twice.
He could have afforded to buy a suit after that job.
Passive Voice:
The garden was tended by Joshua.
I am excited by your presence.
The helicopters are serviced by highly trained professionals.