Verb
1. Modal Verb 2. V to be 3. have/has/had
Can/Could = สามารถ V to be V to have
Will/Would = จะ V1 V2 V3 V1 V2 V3
Shall/Should = ควรจะ Is was been have had had
May/Might = อาจจะ am has
Must = ต้อง are were
Ought to = ควรจะ
have to/has to/had to
+ + +
V3
V1/be/have V3 / Ving