Verb Study
All Verbs
Verb Quiz
doubt
doubt, doubted, doubted
To feel uncertain
懷疑
Base Form
doubt
Simple Past
doubted
Past Participle
doubted
3rd Person Singular
doubts
-ing Form
doubting
Categories
Type 2: reg
Type 5: a-b-b
49
1
2026-07-15
G
G
B
B
All Verbs
Verb Quiz
Verbs starting with "dou"
2
double
doubt
Verbs ending with "ubt"
1
doubt
Verbs
10
do
dominate
donate
double
doubt
downgrade
download
draft
drag
drain
c-1 9429