The suffix for undo is to not do.
The suffix of "moon" is "-oon".
The suffix is -er, meaning "one who campaigns."
The suffix of inundate is -ate. This suffix means in condition of.
The suffix of radiation is -tion. This suffix means the process of.
I will grieve later. The class will grieve for their slain classmate.
I will grieve during the funeral. The soldiers grieve for their fallen comrade.
Grieve is already a verb. For example "to grieve someone or something" is an action, therefore it is a verb.
Bill Grieve's birth name is William Thomas Turner Grieve.
Yes, the word grieve is a verb.
I will grieve when you are gone.
Percy Grieve died in 1998.
Basil Grieve was born in 1864.
Basil Grieve died in 1917.
Ollie Grieve died in 1978.
Charles Grieve was born in 1913.
Charles Grieve died in 2000.