Объясните когда ставится: am, are, is/ was, were have, has, had will do, does, did can, could must should? з.ы. с пояснениями(время, число, род, и т.д)написать примеры.

Am/is/are - формы глагола be (быть) во временах present когда говоришь о себе - am ( i am friendly)  когда говоришь мы, они, вы, ты - are ( we are friendly, they are friendly, you are friendly) когда говоришь он, она, оно - is (she is friendly, he is friendly, it is friendly) was/were  - формы глагола be (быть) во временах past когда говоришь я, он, она, оно - was (i was friendly, he was friendly, she was friendly, it was friendly) когда говоришь они, мы, вы, ты - were (they were frienly, we were friendly, you were friendly) will используется во временах future если ты хочешь сказать, что будешь что-то делать, то i will do it. (я сделаю это) если ты хочешь сказать, что будешь каким-то, то i will be friendly. ( я буду дружелюбным) will на язык не переводится глагол have имеет две формы have для мы, ты, вы, я, они (we have it, you have it, i have it, they have it) has для он, она, оно (she has it, he has it, it has it) глагол have также может быть (present perfect), но принцип тот же: have для мы, ты, вы, я, они (we/you/i/they have been there several times) has для он, она, оно(he/she/it has been there several times) do - для мы, ты, вы, я, они в present simple (do we/you/i/they like it? - we/you/i/they do it. - we/you/i/they do not like it. does - для он, она, оно в present simple (does he/she it do it? - he/she/it does it. - he/she/it does not do it.) did - для всех лиц и чисел в past simple did i/we/you/they/he/she/it do it yesterday? i/we/you/they/he/she/it did it yesterday. i/we/you/they/he/she/it did not do  it yesterday. can - для всех лиц и чисел в present simple can i/we/you/they/he/she/it do it? i/we/you/they/he/she/it can do it. i/we/you/they/he/she/it can not do it. could - для всех лиц и чисел в past simple could i/we/you/they/he/she/it do it yesterday? i/we/you/they/he/she/it could do yesterday. i/we/you/they/he/she/it could not do it  yesterday. must - для всех лиц и чисел must i/we/you/they/he/she/it do it? i/we/you/they/he/she/it must do it. i/we/you/they/he/she/it must not do it. should - для всех лиц и чисел should i/we/you/they/he/she/it do it? i/we/you/they/he/she/it should do it. i/we/you/they/he/she/it should not do it.

1. who went to england many years ago

2. the romans built a town on the river thames, weren't are

3. is the river thames the part of london's history

4. how many bridqes are   over the thames