it's depend of your sentence if it singular or plural.
ex: PLURAL
1. My houses, like other Muslim houses (be) built differently.
ans;
My houses, like other Muslim houses (have been) built differently.
ex: SINGULAR
2. President Gloria Arroyo who is the daughter of president Diosdado Macapagal (be) the fourteenth president if the Philippines.
ans:
President Gloria Arroyo who is the daughter of president Diosdado Macapagal (is) the fourteenth president if the Philippines.
"You have begun" is correct.
The correct form of the verb "promise" in the sentence "He did as he promised." is already correct.
in that form no, but grumble is. Grumbled is the past tense form of the verb grumble :)
The correct form of the verb "estar" for nosotros is "estamos."
The correct verb form depends on whether the company name is singular or plural. The verb form should agree with the noun.
The correct form of verb of the sentence "This property is for sale, sell" is "sale".
Observe is a verb
The correct form is "does it imply", as "imply" is the base form of the verb and is used with the auxiliary verb "does" in interrogative sentences.
Indulge/indulges is the correct present tense form.
The correct form is When did I come? (I did come when).
The verb in that sentence is "take". It's not the correct form, though. The correct form is "takes".
It's scatter for I/We/They/You.It's scatters for He/She.