Using -ed to form past tense verbs

Front

Past tense of "obey"?

Back

obeyed

Front

Past tense of "yell"?

Back

yelled

Front

Past tense of "jog"?

Back

jogged

Front

Past tense of "watch"?

Back

watched

Front

Past tense of "announce"?

Back

announced

Front

Past tense of "clap"?

Back

clapped

Front

Past tense of "worry"?

Back

worried

Front

Past tense of "try"?

Back

tried

Front

Past tense of "improve"?

Back

improved

Front

Past tense of "hop"?

Back

hopped